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160968987 = 3217885443
BaseRepresentation
bin10011001100000…
…11000100011011
3102012220001221100
421212003010123
5312202001422
623550042443
73663133224
oct1146030433
9365801840
10160968987
1182954423
1245aa9423
132746c82a
141754224b
15e1e97ac
hex998311b

160968987 has 6 divisors (see below), whose sum is σ = 232510772. Its totient is φ = 107312652.

The previous prime is 160968967. The next prime is 160968989. The reversal of 160968987 is 789869061.

It is not a de Polignac number, because 160968987 - 27 = 160968859 is a prime.

It is a super-2 number, since 2×1609689872 = 51822029551612338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160968989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8942713 + ... + 8942730.

Almost surely, 2160968987 is an apocalyptic number.

160968987 is a deficient number, since it is larger than the sum of its proper divisors (71541785).

160968987 is a wasteful number, since it uses less digits than its factorization.

160968987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17885449 (or 17885446 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 160968987 is about 12687.3553981908. The cubic root of 160968987 is about 543.9772497605.

The spelling of 160968987 in words is "one hundred sixty million, nine hundred sixty-eight thousand, nine hundred eighty-seven".

Divisors: 1 3 9 17885443 53656329 160968987