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42775228839 = 372970238471
BaseRepresentation
bin100111110101100110…
…100011000110100111
311002102002010202202210
4213311212203012213
51200100424310324
631352313334503
73043003305660
oct476546430647
9132362122683
1042775228839
11171605575a2
128359407433
1340590187c5
1420dadc4367
1511a547bd29
hex9f59a31a7

42775228839 has 16 divisors (see below), whose sum is σ = 67428933120. Its totient is φ = 23600125920.

The previous prime is 42775228813. The next prime is 42775228843. The reversal of 42775228839 is 93882257724.

It is not a de Polignac number, because 42775228839 - 25 = 42775228807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42775228889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35118627 + ... + 35119844.

It is an arithmetic number, because the mean of its divisors is an integer number (4214308320).

Almost surely, 242775228839 is an apocalyptic number.

42775228839 is a deficient number, since it is larger than the sum of its proper divisors (24653704281).

42775228839 is a wasteful number, since it uses less digits than its factorization.

42775228839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70238510.

The product of its digits is 13547520, while the sum is 57.

The spelling of 42775228839 in words is "forty-two billion, seven hundred seventy-five million, two hundred twenty-eight thousand, eight hundred thirty-nine".

Divisors: 1 3 7 21 29 87 203 609 70238471 210715413 491669297 1475007891 2036915659 6110746977 14258409613 42775228839