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1392430391028 = 2233311792323459
BaseRepresentation
bin10100010000110011010…
…100011001111011110100
311221010002212102211002000
4110100303110121323310
5140303144140003103
62543401303415300
7202412503016145
oct24206324317364
94833085384060
101392430391028
11497587723006
121a5a42154530
13a13c85b6301
144b573177acc
152634882caa3
hex14433519ef4

1392430391028 has 96 divisors (see below), whose sum is σ = 3747276288000. Its totient is φ = 446661565920.

The previous prime is 1392430391021. The next prime is 1392430391039. The reversal of 1392430391028 is 8201930342931.

1392430391028 is a `hidden beast` number, since 13 + 9 + 243 + 0 + 391 + 0 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392430391021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562438 + ... + 1761021.

It is an arithmetic number, because the mean of its divisors is an integer number (39034128000).

Almost surely, 21392430391028 is an apocalyptic number.

1392430391028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1392430391028 is an abundant number, since it is smaller than the sum of its proper divisors (2354845896972).

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

1392430391028 is a wasteful number, since it uses less digits than its factorization.

1392430391028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323682 (or 2323674 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 1392430391028 in words is "one trillion, three hundred ninety-two billion, four hundred thirty million, three hundred ninety-one thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 31 36 54 62 93 108 124 179 186 279 358 372 537 558 716 837 1074 1116 1611 1674 2148 3222 3348 4833 5549 6444 9666 11098 16647 19332 22196 33294 49941 66588 99882 149823 199764 299646 599292 2323459 4646918 6970377 9293836 13940754 20911131 27881508 41822262 62733393 72027229 83644524 125466786 144054458 216081687 250933572 288108916 415899161 432163374 648245061 831798322 864326748 1247697483 1296490122 1663596644 1944735183 2495394966 2592980244 3743092449 3889470366 4990789932 7486184898 7778940732 11229277347 12892873991 14972369796 22458554694 25785747982 38678621973 44917109388 51571495964 77357243946 116035865919 154714487892 232071731838 348107597757 464143463676 696215195514 1392430391028