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1331020014 = 231791239311
BaseRepresentation
bin100111101010101…
…1100000011101110
310102202112211012120
41033111130003232
510211220120024
6340024213410
744661324552
oct11725340356
93382484176
101331020014
11623365045
1231190a266
131829a930c
14c8ab7862
157bcbb479
hex4f55c0ee

1331020014 has 16 divisors (see below), whose sum is σ = 2676913920. Its totient is φ = 441194360.

The previous prime is 1331020001. The next prime is 1331020027. The reversal of 1331020014 is 4100201331.

It is an interprime number because it is at equal distance from previous prime (1331020001) and next prime (1331020027).

It is a super-2 number, since 2×13310200142 = 3543228555337120392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331019975 and 1331020002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618582 + ... + 620729.

It is an arithmetic number, because the mean of its divisors is an integer number (167307120).

Almost surely, 21331020014 is an apocalyptic number.

1331020014 is an abundant number, since it is smaller than the sum of its proper divisors (1345893906).

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

1331020014 is a wasteful number, since it uses less digits than its factorization.

1331020014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239495.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1331020014 is about 36483.1469859715. The cubic root of 1331020014 is about 1100.0055134710.

Adding to 1331020014 its reverse (4100201331), we get a palindrome (5431221345).

The spelling of 1331020014 in words is "one billion, three hundred thirty-one million, twenty thousand, fourteen".

Divisors: 1 2 3 6 179 358 537 1074 1239311 2478622 3717933 7435866 221836669 443673338 665510007 1331020014