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531106983 = 33111788239
BaseRepresentation
bin11111101010000…
…000110010100111
31101000101000211000
4133222000302213
52041430410413
6124411244343
716106222601
oct3752006247
91330330730
10531106983
112528835a0
12129a496b3
1386056bb4
1450772171
1531960073
hex1fa80ca7

531106983 has 16 divisors (see below), whose sum is σ = 858355200. Its totient is φ = 321882840.

The previous prime is 531106963. The next prime is 531106993. The reversal of 531106983 is 389601135.

It is a happy number.

It is not a de Polignac number, because 531106983 - 213 = 531098791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531106963) 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, 893823 + ... + 894416.

It is an arithmetic number, because the mean of its divisors is an integer number (53647200).

Almost surely, 2531106983 is an apocalyptic number.

531106983 is a deficient number, since it is larger than the sum of its proper divisors (327248217).

531106983 is a wasteful number, since it uses less digits than its factorization.

531106983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788259 (or 1788253 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 531106983 is about 23045.7584600724. The cubic root of 531106983 is about 809.8302662184.

The spelling of 531106983 in words is "five hundred thirty-one million, one hundred six thousand, nine hundred eighty-three".

Divisors: 1 3 9 11 27 33 99 297 1788239 5364717 16094151 19670629 48282453 59011887 177035661 531106983