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2126908930 = 251712511229
BaseRepresentation
bin111111011000110…
…0000111000000010
312111020011011112211
41332301200320002
513323442041210
6551015012334
7103464266446
oct17661407002
95436134484
102126908930
119a1648183
124b436a0aa
1327b84cbc3
14162692826
15c6ad038a
hex7ec60e02

2126908930 has 16 divisors (see below), whose sum is σ = 4053638520. Its totient is φ = 800718592.

The previous prime is 2126908919. The next prime is 2126908997. The reversal of 2126908930 is 398096212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2078174569 + 48734361 = 45587^2 + 6981^2 .

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, 6255445 + ... + 6255784.

Almost surely, 22126908930 is an apocalyptic number.

2126908930 is a deficient number, since it is larger than the sum of its proper divisors (1926729590).

2126908930 is a wasteful number, since it uses less digits than its factorization.

2126908930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12511253.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 2126908930 is about 46118.4228915083. The cubic root of 2126908930 is about 1286.0256523903.

The spelling of 2126908930 in words is "two billion, one hundred twenty-six million, nine hundred eight thousand, nine hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 12511229 25022458 62556145 125112290 212690893 425381786 1063454465 2126908930