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12955020 = 22351317977
BaseRepresentation
bin110001011010…
…110110001100
3220101011221120
4301122312030
511304030040
61141400540
7215054511
oct61326614
926334846
1012955020
117349331
124409150
1328b78c0
141a13308
15120d7d0
hexc5ad8c

12955020 has 96 divisors (see below), whose sum is σ = 41404608. Its totient is φ = 2998272.

The previous prime is 12955001. The next prime is 12955027. The reversal of 12955020 is 2055921.

12955020 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12955027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12772 + ... + 13748.

It is an arithmetic number, because the mean of its divisors is an integer number (431298).

Almost surely, 212955020 is an apocalyptic number.

12955020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12955020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20702304).

12955020 is an abundant number, since it is smaller than the sum of its proper divisors (28449588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12955020 is a wasteful number, since it uses less digits than its factorization.

12955020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 1017 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 12955020 is about 3599.3082668757. The cubic root of 12955020 is about 234.8619681328.

The spelling of 12955020 in words is "twelve million, nine hundred fifty-five thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 17 20 26 30 34 39 51 52 60 65 68 78 85 102 130 156 170 195 204 221 255 260 340 390 442 510 663 780 884 977 1020 1105 1326 1954 2210 2652 2931 3315 3908 4420 4885 5862 6630 9770 11724 12701 13260 14655 16609 19540 25402 29310 33218 38103 49827 50804 58620 63505 66436 76206 83045 99654 127010 152412 166090 190515 199308 215917 249135 254020 332180 381030 431834 498270 647751 762060 863668 996540 1079585 1295502 2159170 2591004 3238755 4318340 6477510 12955020