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80402001597 = 332977851911
BaseRepresentation
bin100101011100001010…
…1010010111010111101
321200112100112212112000
41022320111102322331
52304130403022342
6100534113532513
75544302510631
oct1127025227275
9250470485460
1080402001597
1131109919905
12136ba574139
1377744c7498
143c6a300dc1
15215892a44c
hex12b8552ebd

80402001597 has 8 divisors (see below), whose sum is σ = 119114076480. Its totient is φ = 53601334380.

The previous prime is 80402001509. The next prime is 80402001607. The reversal of 80402001597 is 79510020408.

80402001597 is a `hidden beast` number, since 8 + 0 + 40 + 20 + 0 + 1 + 597 = 666.

It is not a de Polignac number, because 80402001597 - 210 = 80402000573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80402001397) 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, 1488925929 + ... + 1488925982.

It is an arithmetic number, because the mean of its divisors is an integer number (14889259560).

Almost surely, 280402001597 is an apocalyptic number.

It is an amenable number.

80402001597 is a deficient number, since it is larger than the sum of its proper divisors (38712074883).

80402001597 is a wasteful number, since it uses less digits than its factorization.

80402001597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977851920 (or 2977851914 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 80402001597 in words is "eighty billion, four hundred two million, one thousand, five hundred ninety-seven".

Divisors: 1 3 9 27 2977851911 8933555733 26800667199 80402001597