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82837531240 = 2352070938281
BaseRepresentation
bin100110100100110000…
…0000110101001101000
321220211002102121002121
41031021200012221220
52324122401444430
6102015515441024
75661535253302
oct1151140065150
9256732377077
1082837531240
1132149699322
121407a156174
137a71c72c99
14401b96c972
15224c66da7a
hex1349806a68

82837531240 has 16 divisors (see below), whose sum is σ = 186384445380. Its totient is φ = 33135012480.

The previous prime is 82837531187. The next prime is 82837531279. The reversal of 82837531240 is 4213573828.

It can be written as a sum of positive squares in 2 ways, for example, as 81187384356 + 1650146884 = 284934^2 + 40622^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035469101 + ... + 1035469180.

Almost surely, 282837531240 is an apocalyptic number.

It is an amenable number.

82837531240 is an abundant number, since it is smaller than the sum of its proper divisors (103546914140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82837531240 is a wasteful number, since it uses less digits than its factorization.

82837531240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070938292 (or 2070938288 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 82837531240 in words is "eighty-two billion, eight hundred thirty-seven million, five hundred thirty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 2070938281 4141876562 8283753124 10354691405 16567506248 20709382810 41418765620 82837531240