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230401975 = 5223938561
BaseRepresentation
bin11011011101110…
…10011110110111
3121001112122002111
431232322132313
5432440330400
634510151451
75465245606
oct1556723667
9531478074
10230401975
11109068461
12651b2587
133897023b
1422857a3d
15153623ba
hexdbba7b7

230401975 has 12 divisors (see below), whose sum is σ = 286901280. Its totient is φ = 183545600.

The previous prime is 230401973. The next prime is 230401979. The reversal of 230401975 is 579104032.

It is not a de Polignac number, because 230401975 - 21 = 230401973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230401973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13306 + ... + 25255.

It is an arithmetic number, because the mean of its divisors is an integer number (23908440).

Almost surely, 2230401975 is an apocalyptic number.

230401975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

230401975 is a deficient number, since it is larger than the sum of its proper divisors (56499305).

230401975 is a wasteful number, since it uses less digits than its factorization.

230401975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38810 (or 38805 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 230401975 is about 15178.9978259436. The cubic root of 230401975 is about 613.0492976010.

The spelling of 230401975 in words is "two hundred thirty million, four hundred one thousand, nine hundred seventy-five".

Divisors: 1 5 25 239 1195 5975 38561 192805 964025 9216079 46080395 230401975