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252841680 = 2432571317227
BaseRepresentation
bin11110001001000…
…00111011010000
3122121202200120200
433010200323100
51004211413210
641031135200
76160055520
oct1704407320
9577680520
10252841680
1111a7a4773
1270814500
13404c8c80
1425819680
15172e60c0
hexf120ed0

252841680 has 480 divisors, whose sum is σ = 1111428864. Its totient is φ = 49987584.

The previous prime is 252841649. The next prime is 252841703. The reversal of 252841680 is 86148252.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1113727 + ... + 1113953.

Almost surely, 2252841680 is an apocalyptic number.

252841680 is a gapful number since it is divisible by the number (20) 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 252841680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555714432).

252841680 is an abundant number, since it is smaller than the sum of its proper divisors (858587184).

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

252841680 is a wasteful number, since it uses less digits than its factorization.

252841680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 252841680 is about 15900.9961952074. The cubic root of 252841680 is about 632.3383996639.

The spelling of 252841680 in words is "two hundred fifty-two million, eight hundred forty-one thousand, six hundred eighty".