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100131230 = 2589112507
BaseRepresentation
bin1011111011111…
…10000110011110
320222102012020002
411331332012132
5201113144410
613534054302
72324046533
oct575760636
9228365202
10100131230
1151581091
122964a392
131798b464
14d426d8a
158bcd7a5
hex5f7e19e

100131230 has 16 divisors (see below), whose sum is σ = 182262960. Its totient is φ = 39602112.

The previous prime is 100131223. The next prime is 100131247. The reversal of 100131230 is 32131001.

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, 55364 + ... + 57143.

It is an arithmetic number, because the mean of its divisors is an integer number (11391435).

Almost surely, 2100131230 is an apocalyptic number.

100131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100131230 is a deficient number, since it is larger than the sum of its proper divisors (82131730).

100131230 is a wasteful number, since it uses less digits than its factorization.

100131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112603.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 100131230 is about 10006.5593487472. The cubic root of 100131230 is about 464.3618331777.

Adding to 100131230 its reverse (32131001), we get a palindrome (132262231).

The spelling of 100131230 in words is "one hundred million, one hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 89 178 445 890 112507 225014 562535 1125070 10013123 20026246 50065615 100131230