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243912070 = 25216111287
BaseRepresentation
bin11101000100111…
…00110110000110
3121222222000110101
432202130312012
5444420141240
640111514314
76021134623
oct1642346606
9558860411
10243912070
11115755826
126982899a
133b6c068c
142457334a
151663039a
hexe89cd86

243912070 has 16 divisors (see below), whose sum is σ = 439283808. Its totient is φ = 97511040.

The previous prime is 243912047. The next prime is 243912083. The reversal of 243912070 is 70219342.

243912070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 15967 + ... + 27253.

It is an arithmetic number, because the mean of its divisors is an integer number (27455238).

Almost surely, 2243912070 is an apocalyptic number.

243912070 is a deficient number, since it is larger than the sum of its proper divisors (195371738).

243912070 is a wasteful number, since it uses less digits than its factorization.

243912070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13455.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 243912070 is about 15617.6845274836. The cubic root of 243912070 is about 624.8049055074.

The spelling of 243912070 in words is "two hundred forty-three million, nine hundred twelve thousand, seventy".

Divisors: 1 2 5 10 2161 4322 10805 11287 21610 22574 56435 112870 24391207 48782414 121956035 243912070