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1051213072 = 247213103141
BaseRepresentation
bin111110101010000…
…011110100010000
32201021001011020111
4332222003310100
54123102304242
6252151051104
735023110100
oct7652036420
92637034214
101051213072
1149a422a38
12254070a94
13139a2b790
149d87d200
156244a817
hex3ea83d10

1051213072 has 60 divisors (see below), whose sum is σ = 2551526796. Its totient is φ = 415860480.

The previous prime is 1051213043. The next prime is 1051213073. The reversal of 1051213072 is 2703121501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 697171216 + 354041856 = 26404^2 + 18816^2 .

It is a super-2 number, since 2×10512130722 = 2210097845487354368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051213073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41379 + ... + 61762.

Almost surely, 21051213072 is an apocalyptic number.

It is an amenable number.

1051213072 is an abundant number, since it is smaller than the sum of its proper divisors (1500313724).

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

1051213072 is a wasteful number, since it uses less digits than its factorization.

1051213072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103176 (or 103163 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1051213072 is about 32422.4161962060. The cubic root of 1051213072 is about 1016.7876226718.

Adding to 1051213072 its reverse (2703121501), we get a palindrome (3754334573).

The spelling of 1051213072 in words is "one billion, fifty-one million, two hundred thirteen thousand, seventy-two".

Divisors: 1 2 4 7 8 13 14 16 26 28 49 52 56 91 98 104 112 182 196 208 364 392 637 728 784 1274 1456 2548 5096 10192 103141 206282 412564 721987 825128 1340833 1443974 1650256 2681666 2887948 5053909 5363332 5775896 9385831 10107818 10726664 11551792 18771662 20215636 21453328 37543324 40431272 65700817 75086648 80862544 131401634 150173296 262803268 525606536 1051213072