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1252470870 = 233572412309
BaseRepresentation
bin100101010100111…
…0011000001010110
310020021202010001000
41022221303001112
510031113031440
6324140444130
743015553400
oct11251630126
93207663030
101252470870
11592a949a2
122ab549646
1316c636431
14bc4abb70
1574e52730
hex4aa73056

1252470870 has 192 divisors, whose sum is σ = 3981700800. Its totient is φ = 279175680.

The previous prime is 1252470853. The next prime is 1252470871. The reversal of 1252470870 is 780742521.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252470871) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 541276 + ... + 543584.

It is an arithmetic number, because the mean of its divisors is an integer number (20738025).

Almost surely, 21252470870 is an apocalyptic number.

1252470870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252470870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1990850400).

1252470870 is an abundant number, since it is smaller than the sum of its proper divisors (2729229930).

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

1252470870 is a wasteful number, since it uses less digits than its factorization.

1252470870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380 (or 2367 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 1252470870 is about 35390.2651869126. The cubic root of 1252470870 is about 1077.9266549300.

The spelling of 1252470870 in words is "one billion, two hundred fifty-two million, four hundred seventy thousand, eight hundred seventy".