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995128213090 = 251119736522437
BaseRepresentation
bin11100111101100100100…
…00110111111001100010
310112010121012022000012211
432132302100313321202
5112301010310304330
62041053335112334
7131616130150444
oct16366220677142
93463535260184
10995128213090
11354038a2a320
12140a425126aa
1372abcb7b2ab
14362433dc494
151ad43bd8d2a
hexe7b2437e62

995128213090 has 64 divisors (see below), whose sum is σ = 2085092979840. Its totient is φ = 338123082240.

The previous prime is 995128213049. The next prime is 995128213111. The reversal of 995128213090 is 90312821599.

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, 3108649 + ... + 3413788.

It is an arithmetic number, because the mean of its divisors is an integer number (32579577810).

Almost surely, 2995128213090 is an apocalyptic number.

995128213090 is an abundant number, since it is smaller than the sum of its proper divisors (1089964766750).

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

995128213090 is a wasteful number, since it uses less digits than its factorization.

995128213090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522547.

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 995128213090 in words is "nine hundred ninety-five billion, one hundred twenty-eight million, two hundred thirteen thousand, ninety".

Divisors: 1 2 5 10 11 19 22 38 55 73 95 110 146 190 209 365 418 730 803 1045 1387 1606 2090 2774 4015 6935 8030 13870 15257 30514 76285 152570 6522437 13044874 32612185 65224370 71746807 123926303 143493614 247852606 358734035 476137901 619631515 717468070 952275802 1239263030 1363189333 2380689505 2726378666 4761379010 5237516911 6815946665 9046620119 10475033822 13631893330 18093240238 26187584555 45233100595 52375169110 90466201190 99512821309 199025642618 497564106545 995128213090