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161053708 = 2250979103
BaseRepresentation
bin10011001100101…
…11110000001100
3102020001101011011
421212113300030
5312212204313
623551535004
73663635224
oct1146276014
9366041134
10161053708
1182a02042
1245b2a464
132749c26a
1417565084
15e21493d
hex9997c0c

161053708 has 12 divisors (see below), whose sum is σ = 282401280. Its totient is φ = 80367632.

The previous prime is 161053703. The next prime is 161053721. The reversal of 161053708 is 807350161.

It is a self number, because there is not a number n which added to its sum of digits gives 161053708.

It is not an unprimeable number, because it can be changed into a prime (161053703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37516 + ... + 41587.

It is an arithmetic number, because the mean of its divisors is an integer number (23533440).

Almost surely, 2161053708 is an apocalyptic number.

It is an amenable number.

161053708 is a deficient number, since it is larger than the sum of its proper divisors (121347572).

161053708 is a wasteful number, since it uses less digits than its factorization.

161053708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79616 (or 79614 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 161053708 is about 12690.6937556621. The cubic root of 161053708 is about 544.0726681688.

The spelling of 161053708 in words is "one hundred sixty-one million, fifty-three thousand, seven hundred eight".

Divisors: 1 2 4 509 1018 2036 79103 158206 316412 40263427 80526854 161053708