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97020131 = 1359126493
BaseRepresentation
bin1011100100001…
…10100011100011
320202120010121012
411302012203203
5144314121011
613343251135
72255441345
oct562064343
9222503535
1097020131
114a84672a
12285a9aab
131713c380
14cc57295
1587b6a8b
hex5c868e3

97020131 has 8 divisors (see below), whose sum is σ = 106254960. Its totient is φ = 88038432.

The previous prime is 97020107. The next prime is 97020181. The reversal of 97020131 is 13102079.

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 97020131 - 210 = 97019107 is a prime.

It is a super-2 number, since 2×970201312 = 18825811638514322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97020097 and 97020106.

It is not an unprimeable number, because it can be changed into a prime (97020181) 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 7 ways as a sum of consecutive naturals, for example, 62480 + ... + 64013.

It is an arithmetic number, because the mean of its divisors is an integer number (13281870).

Almost surely, 297020131 is an apocalyptic number.

97020131 is a deficient number, since it is larger than the sum of its proper divisors (9234829).

97020131 is a wasteful number, since it uses less digits than its factorization.

97020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126565.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 97020131 is about 9849.8797454588. The cubic root of 97020131 is about 459.5018725629.

The spelling of 97020131 in words is "ninety-seven million, twenty thousand, one hundred thirty-one".

Divisors: 1 13 59 767 126493 1644409 7463087 97020131