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30919642354236 = 2234165995363887
BaseRepresentation
bin1110000011111000010100…
…10011001001001000111100
311001110220000001000211012210
413001330022103021020330
513023041411420313421
6145432142042300420
76340604363413506
oct701741223111074
9131426001024183
1030919642354236
119940a46043359
1235745257b7710
13143392c47096c
1478c73935ad76
15389456977576
hex1c1f0a4c923c

30919642354236 has 48 divisors (see below), whose sum is σ = 74017635310080. Its totient is φ = 10039909918080.

The previous prime is 30919642354217. The next prime is 30919642354273. The reversal of 30919642354236 is 63245324691903.

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, 47357716 + ... + 48006171.

It is an arithmetic number, because the mean of its divisors is an integer number (1542034068960).

Almost surely, 230919642354236 is an apocalyptic number.

It is an amenable number.

30919642354236 is an abundant number, since it is smaller than the sum of its proper divisors (43097992955844).

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

30919642354236 is a wasteful number, since it uses less digits than its factorization.

30919642354236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95364594 (or 95364592 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 57.

The spelling of 30919642354236 in words is "thirty trillion, nine hundred nineteen billion, six hundred forty-two million, three hundred fifty-four thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 659 1318 1977 2636 3954 7908 27019 54038 81057 108076 162114 324228 95363887 190727774 286091661 381455548 572183322 1144366644 3909919367 7819838734 11729758101 15639677468 23459516202 46919032404 62844801533 125689603066 188534404599 251379206132 377068809198 754137618396 2576636862853 5153273725706 7729910588559 10306547451412 15459821177118 30919642354236