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231450100 = 22527330643
BaseRepresentation
bin11011100101110…
…10010111110100
3121010111212211221
431302322113310
5433222400400
634544440124
75510202430
oct1562722764
9533455757
10231450100
11109713982
1265619044
1338c4932b
1422a4b9c0
15154bcc1a
hexdcba5f4

231450100 has 36 divisors (see below), whose sum is σ = 573997984. Its totient is φ = 79354080.

The previous prime is 231450091. The next prime is 231450101. The reversal of 231450100 is 1054132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231450101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164622 + ... + 166021.

Almost surely, 2231450100 is an apocalyptic number.

231450100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231450100 is an abundant number, since it is smaller than the sum of its proper divisors (342547884).

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

231450100 is a wasteful number, since it uses less digits than its factorization.

231450100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330664 (or 330657 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 231450100 is about 15213.4841505817. The cubic root of 231450100 is about 613.9775020316.

The spelling of 231450100 in words is "two hundred thirty-one million, four hundred fifty thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 330643 661286 1322572 1653215 2314501 3306430 4629002 6612860 8266075 9258004 11572505 16532150 23145010 33064300 46290020 57862525 115725050 231450100