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31441403130 = 2352574078003
BaseRepresentation
bin11101010010000011…
…011011110011111010
310000011012112202202020
4131102003123303322
51003342444400010
622235522215310
72162101342224
oct352203336372
9100135482666
1031441403130
1112374941595
1261157b4536
132c70babc67
141743a57414
15c4044b470
hex7520dbcfa

31441403130 has 32 divisors (see below), whose sum is σ = 75753002304. Its totient is φ = 8351748096.

The previous prime is 31441403111. The next prime is 31441403153. The reversal of 31441403130 is 3130414413.

It is a self number, because there is not a number n which added to its sum of digits gives 31441403130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2031292 + ... + 2046711.

It is an arithmetic number, because the mean of its divisors is an integer number (2367281322).

Almost surely, 231441403130 is an apocalyptic number.

31441403130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31441403130 is an abundant number, since it is smaller than the sum of its proper divisors (44311599174).

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

31441403130 is a wasteful number, since it uses less digits than its factorization.

31441403130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078270.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31441403130 its reverse (3130414413), we get a palindrome (34571817543).

The spelling of 31441403130 in words is "thirty-one billion, four hundred forty-one million, four hundred three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 257 514 771 1285 1542 2570 3855 7710 4078003 8156006 12234009 20390015 24468018 40780030 61170045 122340090 1048046771 2096093542 3144140313 5240233855 6288280626 10480467710 15720701565 31441403130