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531475754493 = 31134073384919
BaseRepresentation
bin1111011101111100110…
…11000110110111111101
31212210211110101201012110
413232332123012313331
532201430243120433
61044053453524233
753253315242415
oct7567633066775
91783743351173
10531475754493
11195441231742
12870061a3679
133b16c196488
141ba1b65d645
15dc590b7963
hex7bbe6c6dfd

531475754493 has 16 divisors (see below), whose sum is σ = 715082820480. Its totient is φ = 351094485504.

The previous prime is 531475754479. The next prime is 531475754501. The reversal of 531475754493 is 394457574135.

It is not a de Polignac number, because 531475754493 - 26 = 531475754429 is a prime.

It is a super-2 number, since 2×5314757544932 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531475754473) 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, 1188288 + ... + 1573206.

It is an arithmetic number, because the mean of its divisors is an integer number (44692676280).

Almost surely, 2531475754493 is an apocalyptic number.

It is an amenable number.

531475754493 is a deficient number, since it is larger than the sum of its proper divisors (183607065987).

531475754493 is a wasteful number, since it uses less digits than its factorization.

531475754493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389108.

The product of its digits is 31752000, while the sum is 57.

The spelling of 531475754493 in words is "five hundred thirty-one billion, four hundred seventy-five million, seven hundred fifty-four thousand, four hundred ninety-three".

Divisors: 1 3 113 339 4073 12219 384919 460249 1154757 1380747 43495847 130487541 1567775087 4703325261 177158584831 531475754493