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52611901000 = 235352611901
BaseRepresentation
bin110000111111111010…
…011110011001001000
312000210121120111012221
4300333322132121020
51330222121313000
640100343343424
73541525531321
oct607772363110
9160717514187
1052611901000
1120349056a1a
12a243751b74
134c65c1b889
14279158d448
15157dd2661a
hexc3fe9e648

52611901000 has 32 divisors (see below), whose sum is σ = 123111850680. Its totient is φ = 21044760000.

The previous prime is 52611900997. The next prime is 52611901009. The reversal of 52611901000 is 10911625.

It can be written as a sum of positive squares in 4 ways, for example, as 3344771556 + 49267129444 = 57834^2 + 221962^2 .

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

It is not an unprimeable number, because it can be changed into a prime (52611901009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26304951 + ... + 26306950.

Almost surely, 252611901000 is an apocalyptic number.

52611901000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52611901000 is an abundant number, since it is smaller than the sum of its proper divisors (70499949680).

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

52611901000 is a wasteful number, since it uses less digits than its factorization.

52611901000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52611922 (or 52611908 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 25.

The spelling of 52611901000 in words is "fifty-two billion, six hundred eleven million, nine hundred one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 52611901 105223802 210447604 263059505 420895208 526119010 1052238020 1315297525 2104476040 2630595050 5261190100 6576487625 10522380200 13152975250 26305950500 52611901000