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120241640 = 23514832027
BaseRepresentation
bin1110010101010…
…11110111101000
322101020220112002
413022223313220
5221240213030
615533110132
72660015501
oct712536750
9271226462
10120241640
1161967362
1234328348
131bbacbcc
1411d7dba8
15a852245
hex72abde8

120241640 has 32 divisors (see below), whose sum is σ = 270859680. Its totient is φ = 48040512.

The previous prime is 120241637. The next prime is 120241669. The reversal of 120241640 is 46142021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58307 + ... + 60333.

It is an arithmetic number, because the mean of its divisors is an integer number (8464365).

Almost surely, 2120241640 is an apocalyptic number.

120241640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120241640 is an abundant number, since it is smaller than the sum of its proper divisors (150618040).

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

120241640 is a wasteful number, since it uses less digits than its factorization.

120241640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521 (or 3517 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 120241640 is about 10965.4749099161. The cubic root of 120241640 is about 493.5732681591.

Adding to 120241640 its reverse (46142021), we get a palindrome (166383661).

The spelling of 120241640 in words is "one hundred twenty million, two hundred forty-one thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1483 2027 2966 4054 5932 7415 8108 10135 11864 14830 16216 20270 29660 40540 59320 81080 3006041 6012082 12024164 15030205 24048328 30060410 60120820 120241640