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103531455220 = 22529178502509
BaseRepresentation
bin110000001101011110…
…1001010001011110100
3100220020021200212002111
41200122331022023310
53144013023031340
6115321154220404
710323414564214
oct1403275121364
9326207625074
10103531455220
113a9a8897736
1218094584704
1399bc34050b
14502208a244
152a5e2abaea
hex181af4a2f4

103531455220 has 24 divisors (see below), whose sum is σ = 224913162600. Its totient is φ = 39984561792.

The previous prime is 103531455211. The next prime is 103531455241. The reversal of 103531455220 is 22554135301.

It can be written as a sum of positive squares in 4 ways, for example, as 15682051984 + 87849403236 = 125228^2 + 296394^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89250675 + ... + 89251834.

It is an arithmetic number, because the mean of its divisors is an integer number (9371381775).

Almost surely, 2103531455220 is an apocalyptic number.

103531455220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103531455220 is an abundant number, since it is smaller than the sum of its proper divisors (121381707380).

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

103531455220 is a wasteful number, since it uses less digits than its factorization.

103531455220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178502547 (or 178502545 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 103531455220 in words is "one hundred three billion, five hundred thirty-one million, four hundred fifty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 178502509 357005018 714010036 892512545 1785025090 3570050180 5176572761 10353145522 20706291044 25882863805 51765727610 103531455220