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87741942 = 2371205967
BaseRepresentation
bin1010011101011…
…01010111110110
320010002202022120
411032231113312
5134430220232
612412340410
72113536261
oct516552766
9203082276
1087741942
1145589902
1225474706
1315241212
14b91dcd8
157a8292c
hex53ad5f6

87741942 has 16 divisors (see below), whose sum is σ = 177956352. Its totient is φ = 28835240.

The previous prime is 87741937. The next prime is 87741959. The reversal of 87741942 is 24914778.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 87741894 and 87741903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102558 + ... + 103409.

It is an arithmetic number, because the mean of its divisors is an integer number (11122272).

Almost surely, 287741942 is an apocalyptic number.

87741942 is an abundant number, since it is smaller than the sum of its proper divisors (90214410).

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

87741942 is a wasteful number, since it uses less digits than its factorization.

87741942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206043.

The product of its digits is 112896, while the sum is 42.

The square root of 87741942 is about 9367.0668835020. The cubic root of 87741942 is about 444.3608076833.

The spelling of 87741942 in words is "eighty-seven million, seven hundred forty-one thousand, nine hundred forty-two".

Divisors: 1 2 3 6 71 142 213 426 205967 411934 617901 1235802 14623657 29247314 43870971 87741942