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103231120 = 2455921871
BaseRepresentation
bin1100010011100…
…10111010010000
321012020200110211
412021302322100
5202411343440
614124333504
72362310236
oct611627220
9235220424
10103231120
11532a9083
122a6a4294
1318505405
14d9d2956
1590e1eea
hex6272e90

103231120 has 40 divisors (see below), whose sum is σ = 244091520. Its totient is φ = 40590720.

The previous prime is 103231091. The next prime is 103231151. The reversal of 103231120 is 21132301.

Adding to 103231120 its reverse (21132301), we get a palindrome (124363421).

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 103231120.

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, 6216 + ... + 15655.

It is an arithmetic number, because the mean of its divisors is an integer number (6102288).

Almost surely, 2103231120 is an apocalyptic number.

103231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103231120 is an abundant number, since it is smaller than the sum of its proper divisors (140860400).

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

103231120 is a wasteful number, since it uses less digits than its factorization.

103231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21943 (or 21937 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103231120 is about 10160.2716499117. The cubic root of 103231120 is about 469.1051632462.

The spelling of 103231120 in words is "one hundred three million, two hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 59 80 118 236 295 472 590 944 1180 2360 4720 21871 43742 87484 109355 174968 218710 349936 437420 874840 1290389 1749680 2580778 5161556 6451945 10323112 12903890 20646224 25807780 51615560 103231120