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4255715464 = 2372111331279
BaseRepresentation
bin1111110110101001…
…0001000010001000
3101222120212202010021
43331222101002020
532203430343324
61542142430224
7210313661500
oct37552210210
911876782107
104255715464
111894271020
129a9292374
1352a8b5740
142c52baa00
1519d937ae4
hexfda91088

4255715464 has 288 divisors, whose sum is σ = 11410761600. Its totient is φ = 1462406400.

The previous prime is 4255715459. The next prime is 4255715479. The reversal of 4255715464 is 4645175524.

It is a super-2 number, since 2×42557154642 = 36222228221057470592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4255715464.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53869777 + ... + 53869855.

It is an arithmetic number, because the mean of its divisors is an integer number (39620700).

Almost surely, 24255715464 is an apocalyptic number.

4255715464 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4255715464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5705380800).

4255715464 is an abundant number, since it is smaller than the sum of its proper divisors (7155046136).

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

4255715464 is a wasteful number, since it uses less digits than its factorization.

4255715464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 143 counting only the distinct ones).

The product of its digits is 672000, while the sum is 43.

The square root of 4255715464 is about 65235.8449320617. The cubic root of 4255715464 is about 1620.5316885083.

The spelling of 4255715464 in words is "four billion, two hundred fifty-five million, seven hundred fifteen thousand, four hundred sixty-four".