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69897279896 = 23471933592683
BaseRepresentation
bin100000100011000110…
…0111101100110011000
320200102021001201101022
41001012030331212120
52121122200424041
652035501142012
75023056035063
oct1010614754630
9220367051338
1069897279896
1127709212a24
121166855a908
13678c090a22
1435511178da
151c415c024b
hex104633d998

69897279896 has 64 divisors (see below), whose sum is σ = 134964403200. Its totient is φ = 33920391168.

The previous prime is 69897279871. The next prime is 69897279919.

69897279896 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 69897279896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26050571 + ... + 26053253.

It is an arithmetic number, because the mean of its divisors is an integer number (2108818800).

Almost surely, 269897279896 is an apocalyptic number.

It is an amenable number.

69897279896 is a deficient number, since it is larger than the sum of its proper divisors (65067123304).

69897279896 is a wasteful number, since it uses less digits than its factorization.

69897279896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288 (or 3284 counting only the distinct ones).

The product of its digits is 1481421312, while the sum is 80.

The spelling of 69897279896 in words is "sixty-nine billion, eight hundred ninety-seven million, two hundred seventy-nine thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 47 94 188 193 359 376 386 718 772 1436 1544 2683 2872 5366 9071 10732 16873 18142 21464 33746 36284 67492 69287 72568 126101 134984 138574 252202 277148 504404 517819 554296 963197 1008808 1035638 1926394 2071276 3256489 3852788 4142552 6512978 7705576 13025956 24337493 26051912 45270259 48674986 90540518 97349972 181081036 185897021 194699944 362162072 371794042 743588084 1487176168 8737159987 17474319974 34948639948 69897279896