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193938070 = 2523843209
BaseRepresentation
bin10111000111101…
…00001010010110
3111111221002000111
423203310022112
5344122004240
631124433234
74543306054
oct1343641226
9444832014
10193938070
119a5225a7
1254b4881a
1331244071
141ba851d4
151205d1ea
hexb8f4296

193938070 has 16 divisors (see below), whose sum is σ = 364266720. Its totient is φ = 74202304.

The previous prime is 193938067. The next prime is 193938089. The reversal of 193938070 is 70839391.

193938070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1939380702 = 75223949990649800, which contains 22 as substring.

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, 421375 + ... + 421834.

It is an arithmetic number, because the mean of its divisors is an integer number (22766670).

Almost surely, 2193938070 is an apocalyptic number.

193938070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193938070 is a deficient number, since it is larger than the sum of its proper divisors (170328650).

193938070 is a wasteful number, since it uses less digits than its factorization.

193938070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843239.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 193938070 is about 13926.1649422948. The cubic root of 193938070 is about 578.8344309397.

The spelling of 193938070 in words is "one hundred ninety-three million, nine hundred thirty-eight thousand, seventy".

Divisors: 1 2 5 10 23 46 115 230 843209 1686418 4216045 8432090 19393807 38787614 96969035 193938070