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3125252550 = 235275994969
BaseRepresentation
bin1011101001000111…
…1001000111000110
322001210201021112110
42322101321013012
522400031040200
61234041001450
7140306131320
oct27221710706
98053637473
103125252550
11136413a552
12732783286
133aa62a184
142190cc610
15134585b50
hexba4791c6

3125252550 has 96 divisors (see below), whose sum is σ = 8874432000. Its totient is φ = 713007360.

The previous prime is 3125252531. The next prime is 3125252551. The reversal of 3125252550 is 552525213.

3125252550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125252551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 626466 + ... + 631434.

It is an arithmetic number, because the mean of its divisors is an integer number (92442000).

Almost surely, 23125252550 is an apocalyptic number.

3125252550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3125252550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4437216000).

3125252550 is an abundant number, since it is smaller than the sum of its proper divisors (5749179450).

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

3125252550 is a wasteful number, since it uses less digits than its factorization.

3125252550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590 (or 5585 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 3125252550 is about 55903.9582677291. The cubic root of 3125252550 is about 1462.0482526151.

Adding to 3125252550 its reverse (552525213), we get a palindrome (3677777763).

The spelling of 3125252550 in words is "three billion, one hundred twenty-five million, two hundred fifty-two thousand, five hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 75 105 150 175 210 350 525 599 1050 1198 1797 2995 3594 4193 4969 5990 8386 8985 9938 12579 14907 14975 17970 20965 24845 25158 29814 29950 34783 41930 44925 49690 62895 69566 74535 89850 104349 104825 124225 125790 149070 173915 208698 209650 248450 314475 347830 372675 521745 628950 745350 869575 1043490 1739150 2608725 2976431 5217450 5952862 8929293 14882155 17858586 20835017 29764310 41670034 44646465 62505051 74410775 89292930 104175085 125010102 148821550 208350170 223232325 312525255 446464650 520875425 625050510 1041750850 1562626275 3125252550