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1331038442271 = 315127311075897
BaseRepresentation
bin10011010111101000000…
…100101101001100011111
311201020122100122200121010
4103113220010231030133
5133301431320123041
62455245353110303
7165110242040616
oct23275004551437
94636570580533
101331038442271
1147354355627a
12195b6a0b8393
1398693669205
14485cb8aa87d
1524953cc5a16
hex135e812d31f

1331038442271 has 16 divisors (see below), whose sum is σ = 1787126828288. Its totient is φ = 881158824000.

The previous prime is 1331038442263. The next prime is 1331038442273. The reversal of 1331038442271 is 1722448301331.

It is not a de Polignac number, because 1331038442271 - 23 = 1331038442263 is a prime.

It is a super-3 number, since 3×13310384422713 (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331038442273) 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, 699195 + ... + 1775091.

It is an arithmetic number, because the mean of its divisors is an integer number (111695426768).

Almost surely, 21331038442271 is an apocalyptic number.

1331038442271 is a deficient number, since it is larger than the sum of its proper divisors (456088386017).

1331038442271 is a wasteful number, since it uses less digits than its factorization.

1331038442271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078782.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 1331038442271 in words is "one trillion, three hundred thirty-one billion, thirty-eight million, four hundred forty-two thousand, two hundred seventy-one".

Divisors: 1 3 151 453 2731 8193 412381 1075897 1237143 3227691 162460447 487381341 2938274707 8814824121 443679480757 1331038442271