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195012513880 = 23519833091511
BaseRepresentation
bin1011010110011110100…
…1101101000001011000
3200122100202110010202021
42311213221231001120
511143341200421010
6225330522544224
720042410006102
oct2654751550130
9618322403667
10195012513880
1175782531048
1231965368074
131550ac52462
14961d95a572
1551156908da
hex2d67a6d058

195012513880 has 64 divisors (see below), whose sum is σ = 467436614400. Its totient is φ = 73009100160.

The previous prime is 195012513853. The next prime is 195012513889. The reversal of 195012513880 is 88315210591.

195012513880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195012513889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1482676 + ... + 1608835.

It is an arithmetic number, because the mean of its divisors is an integer number (7303697100).

Almost surely, 2195012513880 is an apocalyptic number.

195012513880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195012513880 is an abundant number, since it is smaller than the sum of its proper divisors (272424100520).

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

195012513880 is a wasteful number, since it uses less digits than its factorization.

195012513880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091624 (or 3091620 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 43.

The spelling of 195012513880 in words is "one hundred ninety-five billion, twelve million, five hundred thirteen thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 83 95 152 166 190 332 380 415 664 760 830 1577 1660 3154 3320 6308 7885 12616 15770 31540 63080 3091511 6183022 12366044 15457555 24732088 30915110 58738709 61830220 117477418 123660440 234954836 256595413 293693545 469909672 513190826 587387090 1026381652 1174774180 1282977065 2052763304 2349548360 2565954130 4875312847 5131908260 9750625694 10263816520 19501251388 24376564235 39002502776 48753128470 97506256940 195012513880