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85429446982 = 211139142719577
BaseRepresentation
bin100111110001111111…
…1011110100101000110
322011111201120120001221
41033203333132211012
52344424414300412
6103125025310554
76113010214045
oct1174377364506
9264451516057
1085429446982
1133259771a50
121468219545a
138095c45339
1441c5ca855c
15234eea3b07
hex13e3fde946

85429446982 has 32 divisors (see below), whose sum is σ = 140905215360. Its totient is φ = 38523218880.

The previous prime is 85429446967. The next prime is 85429446989. The reversal of 85429446982 is 28964492458.

It is a self number, because there is not a number n which added to its sum of digits gives 85429446982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85429446989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4353978 + ... + 4373554.

It is an arithmetic number, because the mean of its divisors is an integer number (4403287980).

Almost surely, 285429446982 is an apocalyptic number.

85429446982 is a deficient number, since it is larger than the sum of its proper divisors (55475768378).

85429446982 is a wasteful number, since it uses less digits than its factorization.

85429446982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21156.

The product of its digits is 39813120, while the sum is 61.

The spelling of 85429446982 in words is "eighty-five billion, four hundred twenty-nine million, four hundred forty-six thousand, nine hundred eighty-two".

Divisors: 1 2 11 22 139 278 1427 1529 2854 3058 15697 19577 31394 39154 198353 215347 396706 430694 2181883 2721203 4363766 5442406 27936379 29933233 55872758 59866466 307300169 614600338 3883156681 7766313362 42714723491 85429446982