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188700906950 = 25217222001067
BaseRepresentation
bin1010111110111101110…
…0110101010111000110
3200001001220001021201122
42233233130311113012
511042424413010300
6222404335153542
716430120146523
oct2575734652706
9601056037648
10188700906950
1173033819376
12306a36758b2
1314a434537ba
1491c15d614a
154d96504c85
hex2bef7355c6

188700906950 has 24 divisors (see below), whose sum is σ = 371629787832. Its totient is φ = 71040341120.

The previous prime is 188700906943. The next prime is 188700906991. The reversal of 188700906950 is 59609007881.

It is a junction number, because it is equal to n+sod(n) for n = 188700906892 and 188700906901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110999684 + ... + 111001383.

It is an arithmetic number, because the mean of its divisors is an integer number (15484574493).

Almost surely, 2188700906950 is an apocalyptic number.

188700906950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188700906950 is a deficient number, since it is larger than the sum of its proper divisors (182928880882).

188700906950 is a wasteful number, since it uses less digits than its factorization.

188700906950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222001096 (or 222001091 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 53.

The spelling of 188700906950 in words is "one hundred eighty-eight billion, seven hundred million, nine hundred six thousand, nine hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 85 170 425 850 222001067 444002134 1110005335 2220010670 3774018139 5550026675 7548036278 11100053350 18870090695 37740181390 94350453475 188700906950