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2051041525 = 52136310897
BaseRepresentation
bin111101001000000…
…0110100011110101
312021221101201000221
41322100012203311
513200031312100
6535304534341
7101553364621
oct17220064365
95257351027
102051041525
11962839945
12492a813b1
13268c08850
14156584181
15c00e601a
hex7a4068f5

2051041525 has 12 divisors (see below), whose sum is σ = 2738929732. Its totient is φ = 1514615040.

The previous prime is 2051041511. The next prime is 2051041543. The reversal of 2051041525 is 5251401502.

It can be written as a sum of positive squares in 6 ways, for example, as 1306449 + 2049735076 = 1143^2 + 45274^2 .

It is a de Polignac number, because none of the positive numbers 2k-2051041525 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2051041525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3155124 + ... + 3155773.

Almost surely, 22051041525 is an apocalyptic number.

2051041525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2051041525 is a deficient number, since it is larger than the sum of its proper divisors (687888207).

2051041525 is a wasteful number, since it uses less digits than its factorization.

2051041525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310920 (or 6310915 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2051041525 is about 45288.4259496839. The cubic root of 2051041525 is about 1270.5491920749.

The spelling of 2051041525 in words is "two billion, fifty-one million, forty-one thousand, five hundred twenty-five".

Divisors: 1 5 13 25 65 325 6310897 31554485 82041661 157772425 410208305 2051041525