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97020161 = 752326501
BaseRepresentation
bin1011100100001…
…10100100000001
320202120010122022
411302012210001
5144314121121
613343251225
72255441420
oct562064401
9222503568
1097020161
114a846757
12285a9b15
131713c3a4
14cc572b7
1587b6aab
hex5c86901

97020161 has 8 divisors (see below), whose sum is σ = 111096384. Its totient is φ = 82998000.

The previous prime is 97020107. The next prime is 97020181. The reversal of 97020161 is 16102079.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97020161 - 26 = 97020097 is a prime.

It is a super-3 number, since 3×970201613 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97020161.

It is not an unprimeable number, because it can be changed into a prime (97020181) 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, 9590 + ... + 16911.

It is an arithmetic number, because the mean of its divisors is an integer number (13887048).

Almost surely, 297020161 is an apocalyptic number.

It is an amenable number.

97020161 is a deficient number, since it is larger than the sum of its proper divisors (14076223).

97020161 is a wasteful number, since it uses less digits than its factorization.

97020161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27031.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 97020161 is about 9849.8812683199. The cubic root of 97020161 is about 459.5019199243.

The spelling of 97020161 in words is "ninety-seven million, twenty thousand, one hundred sixty-one".

Divisors: 1 7 523 3661 26501 185507 13860023 97020161