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12088805632 = 28193180173
BaseRepresentation
bin10110100001000110…
…01000100100000000
31011012111012221202221
423100203020210000
5144224213240012
65315321020424
7605400103201
oct132043104400
934174187687
1012088805632
1151438a7662
122414624714
1311a8688c37
148297375a8
154ab463507
hex2d08c8900

12088805632 has 72 divisors (see below), whose sum is σ = 26220104960. Its totient is φ = 5541488640.

The previous prime is 12088805623. The next prime is 12088805639. The reversal of 12088805632 is 23650888021.

It is a super-2 number, since 2×120888056322 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12088805639) 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, 110698 + ... + 190870.

Almost surely, 212088805632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12088805632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13110052480).

12088805632 is an abundant number, since it is smaller than the sum of its proper divisors (14131299328).

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

12088805632 is an equidigital number, since it uses as much as digits as its factorization.

12088805632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80239 (or 80225 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 12088805632 in words is "twelve billion, eighty-eight million, eight hundred five thousand, six hundred thirty-two".

Divisors: 1 2 4 8 16 19 31 32 38 62 64 76 124 128 152 248 256 304 496 589 608 992 1178 1216 1984 2356 2432 3968 4712 4864 7936 9424 18848 37696 75392 80173 150784 160346 320692 641384 1282768 1523287 2485363 2565536 3046574 4970726 5131072 6093148 9941452 10262144 12186296 19882904 20524288 24372592 39765808 47221897 48745184 79531616 94443794 97490368 159063232 188887588 194980736 318126464 377775176 389961472 636252928 755550352 1511100704 3022201408 6044402816 12088805632