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1252930930 = 25174771719
BaseRepresentation
bin100101010101110…
…0011010101110010
310020022121111010021
41022223203111302
510031222242210
6324154354054
743022510566
oct11253432562
93208544107
101252930930
11593279609
122ab72b92a
1316c767964
14bc58b6a6
1574ee3bda
hex4aae3572

1252930930 has 16 divisors (see below), whose sum is σ = 2256598080. Its totient is φ = 500878512.

The previous prime is 1252930919. The next prime is 1252930951. The reversal of 1252930930 is 390392521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18390 + ... + 53329.

It is an arithmetic number, because the mean of its divisors is an integer number (141037380).

Almost surely, 21252930930 is an apocalyptic number.

1252930930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252930930 is a deficient number, since it is larger than the sum of its proper divisors (1003667150).

1252930930 is a wasteful number, since it uses less digits than its factorization.

1252930930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73473.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 1252930930 is about 35396.7644001539. The cubic root of 1252930930 is about 1078.0586208015.

The spelling of 1252930930 in words is "one billion, two hundred fifty-two million, nine hundred thirty thousand, nine hundred thirty".

Divisors: 1 2 5 10 1747 3494 8735 17470 71719 143438 358595 717190 125293093 250586186 626465465 1252930930