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153307540985 = 5201715201541
BaseRepresentation
bin1000111011000111010…
…1110110110111111001
3112122201021012000010112
42032301311312313321
510002433212302420
6154232320354105
714035050411614
oct2166165666771
9478637160115
10153307540985
115a0211236a5
1225866475935
13115c28a1cc1
1475c4b7117b
153ec41718c5
hex23b1d76df9

153307540985 has 8 divisors (see below), whose sum is σ = 184060270536. Its totient is φ = 122585218560.

The previous prime is 153307540963. The next prime is 153307540987. The reversal of 153307540985 is 589045703351.

It can be written as a sum of positive squares in 4 ways, for example, as 35837518864 + 117470022121 = 189308^2 + 342739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 153307540985 - 216 = 153307475449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153307540987) 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, 7590686 + ... + 7610855.

It is an arithmetic number, because the mean of its divisors is an integer number (23007533817).

Almost surely, 2153307540985 is an apocalyptic number.

It is an amenable number.

153307540985 is a deficient number, since it is larger than the sum of its proper divisors (30752729551).

153307540985 is a wasteful number, since it uses less digits than its factorization.

153307540985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15203563.

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 153307540985 in words is "one hundred fifty-three billion, three hundred seven million, five hundred forty thousand, nine hundred eighty-five".

Divisors: 1 5 2017 10085 15201541 76007705 30661508197 153307540985