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18925237104 = 2431773722229
BaseRepresentation
bin10001101000000010…
…000011001101110000
31210211221011122201120
4101220002003031300
5302224330041404
612405533302240
71236661601244
oct215002031560
953757148646
1018925237104
118031891824
123802034980
131a27b22067
14cb7676424
1575b71c9d9
hex468083370

18925237104 has 40 divisors (see below), whose sum is σ = 48895151760. Its totient is φ = 6307772928.

The previous prime is 18925237043. The next prime is 18925237159. The reversal of 18925237104 is 40173252981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840262 + ... + 862490.

It is an arithmetic number, because the mean of its divisors is an integer number (1222378794).

Almost surely, 218925237104 is an apocalyptic number.

It is an amenable number.

18925237104 is an abundant number, since it is smaller than the sum of its proper divisors (29969914656).

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

18925237104 is a wasteful number, since it uses less digits than its factorization.

18925237104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39977 (or 39971 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 18925237104 in words is "eighteen billion, nine hundred twenty-five million, two hundred thirty-seven thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 48 17737 22229 35474 44458 53211 66687 70948 88916 106422 133374 141896 177832 212844 266748 283792 355664 425688 533496 851376 1066992 394275773 788551546 1182827319 1577103092 2365654638 3154206184 4731309276 6308412368 9462618552 18925237104