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19112190516 = 2233192490207
BaseRepresentation
bin10001110011001011…
…001110001000110100
31211022221221212121000
4101303023032020310
5303120210044031
612440252323300
71244421640026
oct216313161064
954287855530
1019112190516
118118373681
123854773530
131a5778bb93
14cd4420016
1576cd4b3e6
hex4732ce234

19112190516 has 72 divisors (see below), whose sum is σ = 52295389440. Its totient is φ = 6035416272.

The previous prime is 19112190511. The next prime is 19112190533. The reversal of 19112190516 is 61509121191.

19112190516 is a `hidden beast` number, since 19 + 1 + 121 + 9 + 0 + 516 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19112190511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206116 + ... + 284091.

Almost surely, 219112190516 is an apocalyptic number.

It is an amenable number.

19112190516 is an abundant number, since it is smaller than the sum of its proper divisors (33183198924).

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

19112190516 is a wasteful number, since it uses less digits than its factorization.

19112190516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490258 (or 490231 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 36.

It can be divided in two parts, 19112 and 190516, that added together give a triangular number (209628 = T647).

The spelling of 19112190516 in words is "nineteen billion, one hundred twelve million, one hundred ninety thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 108 114 171 228 342 361 513 684 722 1026 1083 1444 2052 2166 3249 4332 6498 9747 12996 19494 38988 490207 980414 1470621 1960828 2941242 4411863 5882484 8823726 9313933 13235589 17647452 18627866 26471178 27941799 37255732 52942356 55883598 83825397 111767196 167650794 176964727 251476191 335301588 353929454 502952382 530894181 707858908 1005904764 1061788362 1592682543 2123576724 3185365086 4778047629 6370730172 9556095258 19112190516