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1392413942268 = 2232317145184089
BaseRepresentation
bin10100010000110010010…
…101101010000111111100
311221010001201111010121200
4110100302111222013330
5140303130432123033
62543355515055500
7202412213140446
oct24206225520774
94833051433550
101392413942268
11497579408898
121a5a38741590
13a13c507740b
144b570cd5496
152634717e013
hex1443256a1fc

1392413942268 has 72 divisors (see below), whose sum is σ = 3533291601840. Its totient is φ = 462349459200.

The previous prime is 1392413942267. The next prime is 1392413942303. The reversal of 1392413942268 is 8622493142931.

It is a happy number.

1392413942268 is a `hidden beast` number, since 1 + 3 + 9 + 24 + 1 + 394 + 226 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392413942261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16516768 + ... + 16600856.

It is an arithmetic number, because the mean of its divisors is an integer number (49073494470).

Almost surely, 21392413942268 is an apocalyptic number.

1392413942268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1392413942268 is an abundant number, since it is smaller than the sum of its proper divisors (2140877659572).

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

1392413942268 is a wasteful number, since it uses less digits than its factorization.

1392413942268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85867 (or 85862 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 1392413942268 in words is "one trillion, three hundred ninety-two billion, four hundred thirteen million, nine hundred forty-two thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 317 634 951 1268 1451 1902 2853 2902 3804 4353 5706 5804 8706 11412 13059 17412 26118 52236 84089 168178 252267 336356 459967 504534 756801 919934 1009068 1379901 1513602 1839868 2759802 3027204 4139703 5519604 8279406 16558812 26656213 53312426 79968639 106624852 122013139 159937278 239905917 244026278 319874556 366039417 479811834 488052556 732078834 959623668 1098118251 1464157668 2196236502 4392473004 38678165063 77356330126 116034495189 154712660252 232068990378 348103485567 464137980756 696206971134 1392413942268