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103031313220 = 225113881120671
BaseRepresentation
bin101111111110100100…
…1010001001101000100
3100211221102121000020201
41133331021101031010
53142002004010340
6115155410340244
710305132466243
oct1377511211504
9324842530221
10103031313220
113a771543640
1217b74b8a684
13993c8388c4
144db589895a
152a3041679a
hex17fd251344

103031313220 has 48 divisors (see below), whose sum is σ = 236098146816. Its totient is φ = 37455968000.

The previous prime is 103031313163. The next prime is 103031313221. The reversal of 103031313220 is 22313130301.

It is not an unprimeable number, because it can be changed into a prime (103031313221) by changing a digit.

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, 793485 + ... + 914155.

It is an arithmetic number, because the mean of its divisors is an integer number (4918711392).

Almost surely, 2103031313220 is an apocalyptic number.

103031313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103031313220 is an abundant number, since it is smaller than the sum of its proper divisors (133066833596).

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

103031313220 is a wasteful number, since it uses less digits than its factorization.

103031313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124572 (or 124570 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 103031313220 its reverse (22313130301), we get a palindrome (125344443521).

The spelling of 103031313220 in words is "one hundred three billion, thirty-one million, three hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 3881 7762 15524 19405 38810 42691 77620 85382 120671 170764 213455 241342 426910 482684 603355 853820 1206710 1327381 2413420 2654762 5309524 6636905 13273810 26547620 468324151 936648302 1873296604 2341620755 4683241510 5151565661 9366483020 10303131322 20606262644 25757828305 51515656610 103031313220