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31422152310 = 2351997156773
BaseRepresentation
bin11101010000111001…
…111111111001110110
310000002212022201120220
4131100321333321312
51003323032333220
622233553435210
72161445613333
oct352071777166
9100085281526
1031422152310
1112364a9311a
12610b26bb06
132c69bcb843
14174128598a
15c3d8e7540
hex750e7fe76

31422152310 has 64 divisors (see below), whose sum is σ = 79465432320. Its totient is φ = 7929912960.

The previous prime is 31422152303. The next prime is 31422152323. The reversal of 31422152310 is 1325122413.

It is a super-2 number, since 2×314221523102 (a number of 22 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 (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 525084 + ... + 581856.

It is an arithmetic number, because the mean of its divisors is an integer number (1241647380).

Almost surely, 231422152310 is an apocalyptic number.

31422152310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31422152310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39732716160).

31422152310 is an abundant number, since it is smaller than the sum of its proper divisors (48043280010).

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

31422152310 is a wasteful number, since it uses less digits than its factorization.

31422152310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57773.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31422152310 its reverse (1325122413), we get a palindrome (32747274723).

The spelling of 31422152310 in words is "thirty-one billion, four hundred twenty-two million, one hundred fifty-two thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 971 1942 2913 4855 5826 9710 14565 18449 29130 36898 55347 56773 92245 110694 113546 170319 184490 276735 283865 340638 553470 567730 851595 1078687 1703190 2157374 3236061 5393435 6472122 10786870 16180305 32360610 55126583 110253166 165379749 275632915 330759498 551265830 826898745 1047405077 1653797490 2094810154 3142215231 5237025385 6284430462 10474050770 15711076155 31422152310