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161474712 = 2337961159
BaseRepresentation
bin10011001111111…
…10100010011000
3102020211202122220
421213332202120
5312314142322
624004544040
74000340520
oct1147764230
9366752586
10161474712
118316a383
12460b2020
13275b8a89
1417634680
15e29955c
hex99fe898

161474712 has 32 divisors (see below), whose sum is σ = 461356800. Its totient is φ = 46135584.

The previous prime is 161474701. The next prime is 161474717. The reversal of 161474712 is 217474161.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161474717) 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, 480412 + ... + 480747.

It is an arithmetic number, because the mean of its divisors is an integer number (14417400).

Almost surely, 2161474712 is an apocalyptic number.

161474712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161474712 is an abundant number, since it is smaller than the sum of its proper divisors (299882088).

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

161474712 is a wasteful number, since it uses less digits than its factorization.

161474712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961175 (or 961171 counting only the distinct ones).

The product of its digits is 9408, while the sum is 33.

The square root of 161474712 is about 12707.2700451356. The cubic root of 161474712 is about 544.5463351470.

The spelling of 161474712 in words is "one hundred sixty-one million, four hundred seventy-four thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 961159 1922318 2883477 3844636 5766954 6728113 7689272 11533908 13456226 20184339 23067816 26912452 40368678 53824904 80737356 161474712