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84755102690 = 2533797250777
BaseRepresentation
bin100111011101111001…
…1000011101111100010
322002202201200022121102
41032323303003233202
52342034301241230
6102534055554402
76060211325516
oct1167363035742
9262681608542
1084755102690
1132a43056115
121451438ba02
137cb931974b
1441604cc146
152310b9d045
hex13bbcc3be2

84755102690 has 16 divisors (see below), whose sum is σ = 152564307192. Its totient is φ = 33900902784.

The previous prime is 84755102681. The next prime is 84755102699. The reversal of 84755102690 is 9620155748.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84755102681) and next prime (84755102699).

It can be written as a sum of positive squares in 4 ways, for example, as 79125751849 + 5629350841 = 281293^2 + 75029^2 .

It is a super-2 number, since 2×847551026902 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84755102699) 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, 212582 + ... + 463358.

Almost surely, 284755102690 is an apocalyptic number.

84755102690 is a deficient number, since it is larger than the sum of its proper divisors (67809204502).

84755102690 is a wasteful number, since it uses less digits than its factorization.

84755102690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284581.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 84755102690 in words is "eighty-four billion, seven hundred fifty-five million, one hundred two thousand, six hundred ninety".

Divisors: 1 2 5 10 33797 67594 168985 250777 337970 501554 1253885 2507770 8475510269 16951020538 42377551345 84755102690