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87829914288990 = 2353797301813209
BaseRepresentation
bin10011111110000101111110…
…110101111000001101011110
3102111222110100201222001222010
4103332011332311320031132
543003001131024221430
6510444301113332050
724333334103341236
oct2376057665701536
9374873321861863
1087829914288990
1125a92503993265
129a26038707026
133a0142cb1c613
141798dc2048cc6
15a249ce772cb0
hex4fe17ed7835e

87829914288990 has 64 divisors (see below), whose sum is σ = 216491360973120. Its totient is φ = 22788039859200.

The previous prime is 87829914288959. The next prime is 87829914289069. The reversal of 87829914288990 is 9988241992878.

It is a super-2 number, since 2×878299142889902 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107597506 + ... + 108410714.

It is an arithmetic number, because the mean of its divisors is an integer number (3382677515205).

Almost surely, 287829914288990 is an apocalyptic number.

87829914288990 is an abundant number, since it is smaller than the sum of its proper divisors (128661446684130).

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

87829914288990 is a wasteful number, since it uses less digits than its factorization.

87829914288990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910557.

The product of its (nonzero) digits is 3009871872, while the sum is 84.

The spelling of 87829914288990 in words is "eighty-seven trillion, eight hundred twenty-nine billion, nine hundred fourteen million, two hundred eighty-eight thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 555 1110 97301 194602 291903 486505 583806 813209 973010 1459515 1626418 2439627 2919030 3600137 4066045 4879254 7200274 8132090 10800411 12198135 18000685 21600822 24396270 30088733 36001370 54002055 60177466 90266199 108004110 150443665 180532398 300887330 451330995 902661990 79126048909 158252097818 237378146727 395630244545 474756293454 791260489090 1186890733635 2373781467270 2927663809633 5855327619266 8782991428899 14638319048165 17565982857798 29276638096330 43914957144495 87829914288990