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1272070506 = 23771426583
BaseRepresentation
bin100101111010010…
…0100000101101010
310021122121212200110
41023310210011222
510101122224011
6330120515150
743344264240
oct11364440552
93248555613
101272070506
115a3061443
122b601bab6
13173709555
14c0d30790
1576a24ba6
hex4bd2416a

1272070506 has 32 divisors (see below), whose sum is σ = 2948548608. Its totient is φ = 358328880.

The previous prime is 1272070483. The next prime is 1272070517. The reversal of 1272070506 is 6050702721.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210310 + ... + 216273.

It is an arithmetic number, because the mean of its divisors is an integer number (92142144).

Almost surely, 21272070506 is an apocalyptic number.

1272070506 is an abundant number, since it is smaller than the sum of its proper divisors (1676478102).

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

1272070506 is a wasteful number, since it uses less digits than its factorization.

1272070506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426666.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1272070506 is about 35666.0974315946. The cubic root of 1272070506 is about 1083.5203218269.

The spelling of 1272070506 in words is "one billion, two hundred seventy-two million, seventy thousand, five hundred six".

Divisors: 1 2 3 6 7 14 21 42 71 142 213 426 497 994 1491 2982 426583 853166 1279749 2559498 2986081 5972162 8958243 17916486 30287393 60574786 90862179 181724358 212011751 424023502 636035253 1272070506