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755211302157 = 31320983922861
BaseRepresentation
bin10101111110101100001…
…10011111010100001101
32200012022222022010222210
422333112012133110031
544333133043132112
61334534515101033
7105363561103014
oct12772606372415
92605288263883
10755211302157
11271313101134
121024468a1779
13562a6a7bcc0
14287a3bbba7b
15149a11e1b3c
hexafd619f50d

755211302157 has 16 divisors (see below), whose sum is σ = 1084458827648. Its totient is φ = 464722764480.

The previous prime is 755211302141. The next prime is 755211302159. The reversal of 755211302157 is 751203112557.

It is a happy number.

It is not a de Polignac number, because 755211302157 - 24 = 755211302141 is a prime.

It is a super-2 number, since 2×7552113021572 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755211302159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356907 + ... + 1279767.

It is an arithmetic number, because the mean of its divisors is an integer number (67778676728).

Almost surely, 2755211302157 is an apocalyptic number.

It is an amenable number.

755211302157 is a deficient number, since it is larger than the sum of its proper divisors (329247525491).

755211302157 is a wasteful number, since it uses less digits than its factorization.

755211302157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943860.

The product of its (nonzero) digits is 73500, while the sum is 39.

The spelling of 755211302157 in words is "seven hundred fifty-five billion, two hundred eleven million, three hundred two thousand, one hundred fifty-seven".

Divisors: 1 3 13 39 20983 62949 272779 818337 922861 2768583 11997193 35991579 19364392363 58093177089 251737100719 755211302157