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916857241149 = 319106511510207
BaseRepresentation
bin11010101011110001111…
…00110011111000111101
310020122120100122122211010
431111320330303320331
5110010210423204044
61541110504345433
7123145401651123
oct15257074637075
93218510578733
10916857241149
11323923012653
12129839775279
13685c8017505
143253a143913
1518cb2404bb9
hexd578f33e3d

916857241149 has 16 divisors (see below), whose sum is σ = 1286938849280. Its totient is φ = 579012980400.

The previous prime is 916857241133. The next prime is 916857241151. The reversal of 916857241149 is 941142758619.

It is not a de Polignac number, because 916857241149 - 24 = 916857241133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916857241159) 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, 147997 + ... + 1362210.

It is an arithmetic number, because the mean of its divisors is an integer number (80433678080).

Almost surely, 2916857241149 is an apocalyptic number.

It is an amenable number.

916857241149 is a deficient number, since it is larger than the sum of its proper divisors (370081608131).

916857241149 is a wasteful number, since it uses less digits than its factorization.

916857241149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520880.

The product of its digits is 4354560, while the sum is 57.

The spelling of 916857241149 in words is "nine hundred sixteen billion, eight hundred fifty-seven million, two hundred forty-one thousand, one hundred forty-nine".

Divisors: 1 3 19 57 10651 31953 202369 607107 1510207 4530621 28693933 86081799 16085214757 48255644271 305619080383 916857241149