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42869998017 = 3271161861469
BaseRepresentation
bin100111111011010000…
…000100000111000001
311002122200110112122100
4213323100010013001
51200244204414032
631405540501013
73045233653650
oct477320040701
9132580415570
1042869998017
11171a9aa6030
1283850aa769
13407284a442
142109813197
1511ad94b97c
hex9fb4041c1

42869998017 has 24 divisors (see below), whose sum is σ = 77203114560. Its totient is φ = 22270128480.

The previous prime is 42869998001. The next prime is 42869998027. The reversal of 42869998017 is 71089996824.

It is not a de Polignac number, because 42869998017 - 24 = 42869998001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (42869998027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30930042 + ... + 30931427.

It is an arithmetic number, because the mean of its divisors is an integer number (3216796440).

Almost surely, 242869998017 is an apocalyptic number.

It is an amenable number.

42869998017 is a deficient number, since it is larger than the sum of its proper divisors (34333116543).

42869998017 is a wasteful number, since it uses less digits than its factorization.

42869998017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61861493 (or 61861490 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 42869998017 in words is "forty-two billion, eight hundred sixty-nine million, nine hundred ninety-eight thousand, seventeen".

Divisors: 1 3 7 9 11 21 33 63 77 99 231 693 61861469 185584407 433030283 556753221 680476159 1299090849 2041428477 3897272547 4763333113 6124285431 14289999339 42869998017