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1392161396860 = 2251311003486637
BaseRepresentation
bin10100010000100011010…
…010010001100001111100
311221002102010021111110001
4110100203102101201330
5140302121304144420
62543314454124044
7202403025424453
oct24204322214174
94832363244401
101392161396860
114974598a6783
121a5988050624
13a1384953270
144b549555b9a
152632ede5b0a
hex1442349187c

1392161396860 has 48 divisors (see below), whose sum is σ = 3148719156576. Its totient is φ = 513981050112.

The previous prime is 1392161396753. The next prime is 1392161396959. The reversal of 1392161396860 is 686931612931.

It is a super-2 number, since 2×13921613968602 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2617462 + ... + 3104098.

It is an arithmetic number, because the mean of its divisors is an integer number (65598315762).

Almost surely, 21392161396860 is an apocalyptic number.

1392161396860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1392161396860 is an abundant number, since it is smaller than the sum of its proper divisors (1756557759716).

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

1392161396860 is a wasteful number, since it uses less digits than its factorization.

1392161396860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497662 (or 497660 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 1392161396860 in words is "one trillion, three hundred ninety-two billion, one hundred sixty-one million, three hundred ninety-six thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 11003 22006 44012 55015 110030 143039 220060 286078 486637 572156 715195 973274 1430390 1946548 2433185 2860780 4866370 6326281 9732740 12652562 25305124 31631405 63262810 126525620 5354466911 10708933822 21417867644 26772334555 53544669110 69608069843 107089338220 139216139686 278432279372 348040349215 696080698430 1392161396860