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1920910112 = 251171101761
BaseRepresentation
bin111001001111110…
…1100001100100000
311221212112100021222
41302133230030200
512413223110422
6514335434212
765413316012
oct16237541440
94855470258
101920910112
118a6338220
12457385968
13247c75304
1414318c1b2
15b398d842
hex727ec320

1920910112 has 96 divisors (see below), whose sum is σ = 4230672768. Its totient is φ = 851200000.

The previous prime is 1920910081. The next prime is 1920910129. The reversal of 1920910112 is 2110190291.

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, 2523812 + ... + 2524572.

It is an arithmetic number, because the mean of its divisors is an integer number (44069508).

Almost surely, 21920910112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1920910112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2115336384).

1920910112 is an abundant number, since it is smaller than the sum of its proper divisors (2309762656).

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

1920910112 is a wasteful number, since it uses less digits than its factorization.

1920910112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 1920910112 is about 43828.1885548559. The cubic root of 1920910112 is about 1243.0893553593.

The spelling of 1920910112 in words is "one billion, nine hundred twenty million, nine hundred ten thousand, one hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 71 88 101 142 176 202 284 352 404 568 761 781 808 1111 1136 1522 1562 1616 2222 2272 3044 3124 3232 4444 6088 6248 7171 8371 8888 12176 12496 14342 16742 17776 24352 24992 28684 33484 35552 54031 57368 66968 76861 78881 108062 114736 133936 153722 157762 216124 229472 267872 307444 315524 432248 594341 614888 631048 845471 864496 1188682 1229776 1262096 1690942 1728992 2377364 2459552 2524192 3381884 4754728 5457131 6763768 9509456 10914262 13527536 19018912 21828524 27055072 43657048 60028441 87314096 120056882 174628192 240113764 480227528 960455056 1920910112