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90914228770 = 25174312436967
BaseRepresentation
bin101010010101011101…
…0010000101000100010
322200122222011100020011
41110222322100220202
52442143020310040
6105433155235134
76365640123361
oct1245272205042
9280588140204
1090914228770
1135613791762
1215752ba8aaa
13875b35b251
1445864bd7d8
1525717693ea
hex152ae90a22

90914228770 has 32 divisors (see below), whose sum is σ = 177301415808. Its totient is φ = 33430564608.

The previous prime is 90914228749. The next prime is 90914228777. The reversal of 90914228770 is 7782241909.

It is not an unprimeable number, because it can be changed into a prime (90914228777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6211174 + ... + 6225793.

It is an arithmetic number, because the mean of its divisors is an integer number (5540669244).

Almost surely, 290914228770 is an apocalyptic number.

90914228770 is a deficient number, since it is larger than the sum of its proper divisors (86387187038).

90914228770 is a wasteful number, since it uses less digits than its factorization.

90914228770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12437034.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 90914228770 in words is "ninety billion, nine hundred fourteen million, two hundred twenty-eight thousand, seven hundred seventy".

Divisors: 1 2 5 10 17 34 43 85 86 170 215 430 731 1462 3655 7310 12436967 24873934 62184835 124369670 211428439 422856878 534789581 1057142195 1069579162 2114284390 2673947905 5347895810 9091422877 18182845754 45457114385 90914228770