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120684340 = 2257862031
BaseRepresentation
bin1110011000101…
…11111100110100
322102002101210101
413030113330310
5221343344330
615550403444
72663541250
oct714277464
9272071711
10120684340
1162139a27
1234500584
131c00656a
1412057260
15a8dd4ca
hex7317f34

120684340 has 24 divisors (see below), whose sum is σ = 289642752. Its totient is φ = 41377440.

The previous prime is 120684329. The next prime is 120684383. The reversal of 120684340 is 43486021.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 120684299 and 120684308.

It is a congruent number.

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, 430876 + ... + 431155.

It is an arithmetic number, because the mean of its divisors is an integer number (12068448).

Almost surely, 2120684340 is an apocalyptic number.

120684340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120684340 is an abundant number, since it is smaller than the sum of its proper divisors (168958412).

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

120684340 is a wasteful number, since it uses less digits than its factorization.

120684340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862047 (or 862045 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 120684340 is about 10985.6424482139. The cubic root of 120684340 is about 494.1782645443.

The spelling of 120684340 in words is "one hundred twenty million, six hundred eighty-four thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 862031 1724062 3448124 4310155 6034217 8620310 12068434 17240620 24136868 30171085 60342170 120684340