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120264140 = 22525123957
BaseRepresentation
bin1110010101100…
…01010111001100
322101022001101102
413022301113030
5221241423030
615533402232
72660141213
oct712612714
9271261342
10120264140
1161982257
1234339378
131bbba219
1411d8807a
15a858c45
hex72b15cc

120264140 has 24 divisors (see below), whose sum is σ = 253571472. Its totient is φ = 47912000.

The previous prime is 120264127. The next prime is 120264143. The reversal of 120264140 is 41462021.

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

It is not an unprimeable number, because it can be changed into a prime (120264143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6959 + ... + 16998.

It is an arithmetic number, because the mean of its divisors is an integer number (10565478).

Almost surely, 2120264140 is an apocalyptic number.

120264140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120264140 is an abundant number, since it is smaller than the sum of its proper divisors (133307332).

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

120264140 is a wasteful number, since it uses less digits than its factorization.

120264140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24217 (or 24215 counting only the distinct ones).

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

The square root of 120264140 is about 10966.5008092828. The cubic root of 120264140 is about 493.6040525748.

The spelling of 120264140 in words is "one hundred twenty million, two hundred sixty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 251 502 1004 1255 2510 5020 23957 47914 95828 119785 239570 479140 6013207 12026414 24052828 30066035 60132070 120264140