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137070570 = 235713233759
BaseRepresentation
bin10000010101110…
…00011111101010
3100112220220110210
420022320133222
5240042224240
621333521550
73253036440
oct1012703752
9315826423
10137070570
117041116a
1239aa32b6
1322522b60
14142c0b90
15c078780
hex82b87ea

137070570 has 256 divisors, whose sum is σ = 441262080. Its totient is φ = 26459136.

The previous prime is 137070553. The next prime is 137070581. The reversal of 137070570 is 75070731.

137070570 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2323201 + ... + 2323259.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2137070570 is an apocalyptic number.

137070570 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 137070570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220631040).

137070570 is an abundant number, since it is smaller than the sum of its proper divisors (304191510).

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

137070570 is a wasteful number, since it uses less digits than its factorization.

137070570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 5145, while the sum is 30.

The square root of 137070570 is about 11707.7141236024. The cubic root of 137070570 is about 515.6021736819.

The spelling of 137070570 in words is "one hundred thirty-seven million, seventy thousand, five hundred seventy".