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193091030 = 25118871979
BaseRepresentation
bin10111000001001…
…01010111010110
3111110100001002122
423200211113112
5343412403110
631054335542
74533150416
oct1340452726
9443301078
10193091030
1199aa4170
12547ba5b2
1331008662
141b904646
1511e42255
hexb8255d6

193091030 has 32 divisors (see below), whose sum is σ = 379779840. Its totient is φ = 70100320.

The previous prime is 193091021. The next prime is 193091057. The reversal of 193091030 is 30190391.

193091030 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 15 ways as a sum of consecutive naturals, for example, 96581 + ... + 98559.

It is an arithmetic number, because the mean of its divisors is an integer number (11868120).

Almost surely, 2193091030 is an apocalyptic number.

193091030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193091030 is a deficient number, since it is larger than the sum of its proper divisors (186688810).

193091030 is a wasteful number, since it uses less digits than its factorization.

193091030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 193091030 is about 13895.7198446140. The cubic root of 193091030 is about 577.9904992392.

The spelling of 193091030 in words is "one hundred ninety-three million, ninety-one thousand, thirty".

Divisors: 1 2 5 10 11 22 55 110 887 1774 1979 3958 4435 8870 9757 9895 19514 19790 21769 43538 48785 97570 108845 217690 1755373 3510746 8776865 17553730 19309103 38618206 96545515 193091030