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25030002712 = 231113186711719
BaseRepresentation
bin10111010011111001…
…111000100000011000
32101121101100212210111
4113103321320200120
5402230140041322
615255411454104
71544160340561
oct272371704030
971541325714
1025030002712
11a684869560
124a265b7334
13248b80c7c0
1412d6357168
159b764c177
hex5d3e78818

25030002712 has 64 divisors (see below), whose sum is σ = 55170259200. Its totient is φ = 10495578240.

The previous prime is 25030002707. The next prime is 25030002721. The reversal of 25030002712 is 21720003052.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2129989 + ... + 2141707.

It is an arithmetic number, because the mean of its divisors is an integer number (862035300).

Almost surely, 225030002712 is an apocalyptic number.

25030002712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25030002712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27585129600).

25030002712 is an abundant number, since it is smaller than the sum of its proper divisors (30140256488).

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

25030002712 is a wasteful number, since it uses less digits than its factorization.

25030002712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13616 (or 13612 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

Adding to 25030002712 its reverse (21720003052), we get a palindrome (46750005764).

The spelling of 25030002712 in words is "twenty-five billion, thirty million, two thousand, seven hundred twelve".

Divisors: 1 2 4 8 11 13 22 26 44 52 88 104 143 286 572 1144 1867 3734 7468 11719 14936 20537 23438 24271 41074 46876 48542 82148 93752 97084 128909 152347 164296 194168 257818 266981 304694 515636 533962 609388 1031272 1067924 1218776 1675817 2135848 3351634 6703268 13406536 21879373 43758746 87517492 175034984 240673103 284431849 481346206 568863698 962692412 1137727396 1925384824 2275454792 3128750339 6257500678 12515001356 25030002712