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63101976990 = 23513161799941
BaseRepresentation
bin111010110001001010…
…111100000110011110
320000212200111120012220
4322301022330012132
52013213101230430
644553314210210
74362503645253
oct726112740636
9200780446186
1063101976990
112484146a308
1210290883966
135c482c8030
1430a884342a
151994c3c110
hexeb12bc19e

63101976990 has 32 divisors (see below), whose sum is σ = 163094341536. Its totient is φ = 15532794240.

The previous prime is 63101976941. The next prime is 63101977009. The reversal of 63101976990 is 9967910136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80899581 + ... + 80900360.

It is an arithmetic number, because the mean of its divisors is an integer number (5096698173).

Almost surely, 263101976990 is an apocalyptic number.

63101976990 is an abundant number, since it is smaller than the sum of its proper divisors (99992364546).

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

63101976990 is a wasteful number, since it uses less digits than its factorization.

63101976990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161799964.

The product of its (nonzero) digits is 551124, while the sum is 51.

The spelling of 63101976990 in words is "sixty-three billion, one hundred one million, nine hundred seventy-six thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 161799941 323599882 485399823 808999705 970799646 1617999410 2103399233 2426999115 4206798466 4853998230 6310197699 10516996165 12620395398 21033992330 31550988495 63101976990