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1025212875 = 3532733901
BaseRepresentation
bin111101000110111…
…000000111001011
32122110010012200020
4331012320013023
54044423303000
6245421511523
734256110551
oct7506700713
92573105606
101025212875
11486784675
122474125a3
1313452724b
149a231bd1
1560011ba0
hex3d1b81cb

1025212875 has 16 divisors (see below), whose sum is σ = 1705954848. Its totient is φ = 546780000.

The previous prime is 1025212871. The next prime is 1025212883. The reversal of 1025212875 is 5782125201.

It is not a de Polignac number, because 1025212875 - 22 = 1025212871 is a prime.

It is a super-2 number, since 2×10252128752 = 2102122878131531250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1025212871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366576 + ... + 1367325.

It is an arithmetic number, because the mean of its divisors is an integer number (106622178).

Almost surely, 21025212875 is an apocalyptic number.

1025212875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025212875 is a deficient number, since it is larger than the sum of its proper divisors (680741973).

1025212875 is an equidigital number, since it uses as much as digits as its factorization.

1025212875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733919 (or 2733909 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 1025212875 is about 32018.9455635254. The cubic root of 1025212875 is about 1008.3346325750.

The spelling of 1025212875 in words is "one billion, twenty-five million, two hundred twelve thousand, eight hundred seventy-five".

Divisors: 1 3 5 15 25 75 125 375 2733901 8201703 13669505 41008515 68347525 205042575 341737625 1025212875