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156016540 = 2257800827
BaseRepresentation
bin10010100110010…
…01111110011100
3101212120110110101
421103021332130
5304420012130
623251550444
73603055501
oct1123117634
9355513411
10156016540
1180081599
12442bb424
13264275a4
1416a134a8
15da6c1ca
hex94c9f9c

156016540 has 12 divisors (see below), whose sum is σ = 327634776. Its totient is φ = 62406608.

The previous prime is 156016537. The next prime is 156016573. The reversal of 156016540 is 45610651.

It is a junction number, because it is equal to n+sod(n) for n = 156016499 and 156016508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900394 + ... + 3900433.

It is an arithmetic number, because the mean of its divisors is an integer number (27302898).

Almost surely, 2156016540 is an apocalyptic number.

156016540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156016540 is an abundant number, since it is smaller than the sum of its proper divisors (171618236).

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

156016540 is a wasteful number, since it uses less digits than its factorization.

156016540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7800836 (or 7800834 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 156016540 is about 12490.6581091630. The cubic root of 156016540 is about 538.3402858220.

The spelling of 156016540 in words is "one hundred fifty-six million, sixteen thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 7800827 15601654 31203308 39004135 78008270 156016540