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1992070572 = 2232359711723
BaseRepresentation
bin111011010111100…
…1001010110101100
312010211102200002120
41312233021112230
513034432224242
6525400552540
7100236214632
oct16657112654
95124380076
101992070572
11932521118
12477182750
1325992c0ab
1414c7d3352
15b9d481ec
hex76bc95ac

1992070572 has 96 divisors (see below), whose sum is σ = 5004840960. Its totient is φ = 615236160.

The previous prime is 1992070543. The next prime is 1992070601. The reversal of 1992070572 is 2750702991.

It is an interprime number because it is at equal distance from previous prime (1992070543) and next prime (1992070601).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1155303 + ... + 1157025.

It is an arithmetic number, because the mean of its divisors is an integer number (52133760).

Almost surely, 21992070572 is an apocalyptic number.

1992070572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1992070572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2502420480).

1992070572 is an abundant number, since it is smaller than the sum of its proper divisors (3012770388).

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

1992070572 is a wasteful number, since it uses less digits than its factorization.

1992070572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 1992070572 is about 44632.6178035750. The cubic root of 1992070572 is about 1258.2537689772.

The spelling of 1992070572 in words is "one billion, nine hundred ninety-two million, seventy thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 23 46 59 69 71 92 118 138 142 177 213 236 276 284 354 426 708 852 1357 1633 1723 2714 3266 3446 4071 4189 4899 5169 5428 6532 6892 8142 8378 9798 10338 12567 16284 16756 19596 20676 25134 39629 50268 79258 96347 101657 118887 122333 158516 192694 203314 237774 244666 289041 304971 366999 385388 406628 475548 489332 578082 609942 733998 1156164 1219884 1467996 2338111 2813659 4676222 5627318 7014333 7217647 8440977 9352444 11254636 14028666 14435294 16881954 21652941 28057332 28870588 33763908 43305882 86611764 166005881 332011762 498017643 664023524 996035286 1992070572