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42955785190 = 2531138567049
BaseRepresentation
bin101000000000010111…
…010100001111100110
311002212122212222112001
4220000113110033212
51200433140111230
631422243315514
73050325102223
oct500027241746
9132778788461
1042955785190
111724346a21a
1283a997bb9a
134087555996
142116d8494a
1511b62450ca
hexa005d43e6

42955785190 has 16 divisors (see below), whose sum is σ = 79814620800. Its totient is φ = 16628045760.

The previous prime is 42955785163. The next prime is 42955785193. The reversal of 42955785190 is 9158755924.

It is a super-2 number, since 2×429557851902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42955785193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69283215 + ... + 69283834.

It is an arithmetic number, because the mean of its divisors is an integer number (4988413800).

Almost surely, 242955785190 is an apocalyptic number.

42955785190 is a deficient number, since it is larger than the sum of its proper divisors (36858835610).

42955785190 is a wasteful number, since it uses less digits than its factorization.

42955785190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138567087.

The product of its (nonzero) digits is 4536000, while the sum is 55.

The spelling of 42955785190 in words is "forty-two billion, nine hundred fifty-five million, seven hundred eighty-five thousand, one hundred ninety".

Divisors: 1 2 5 10 31 62 155 310 138567049 277134098 692835245 1385670490 4295578519 8591157038 21477892595 42955785190