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126969894 = 23219371257
BaseRepresentation
bin1111001000101…
…10100000100110
322211220201221200
413210112200212
5230001014034
620333223330
73101140422
oct744264046
9284821850
10126969894
11657423a7
1236631b46
13203c751c
1412c11b82
15b230a99
hex7916826

126969894 has 24 divisors (see below), whose sum is σ = 289581240. Its totient is φ = 40095648.

The previous prime is 126969877. The next prime is 126969919. The reversal of 126969894 is 498969621.

It is a super-2 number, since 2×1269698942 = 32242707964742472, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 126969894.

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, 185287 + ... + 185970.

It is an arithmetic number, because the mean of its divisors is an integer number (12065885).

Almost surely, 2126969894 is an apocalyptic number.

126969894 is an abundant number, since it is smaller than the sum of its proper divisors (162611346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126969894 is a wasteful number, since it uses less digits than its factorization.

126969894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371284 (or 371281 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 126969894 is about 11268.0918526608. The cubic root of 126969894 is about 502.6128476043.

The spelling of 126969894 in words is "one hundred twenty-six million, nine hundred sixty-nine thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 371257 742514 1113771 2227542 3341313 6682626 7053883 14107766 21161649 42323298 63484947 126969894