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70421311554 = 23112131500699
BaseRepresentation
bin100000110010101101…
…1111111000001000010
320201202210010021200020
41001211123333001002
52123210323432204
652203501034310
75042051162136
oct1014533770102
9221683107606
1070421311554
1127957aa3740
1211793b55996
13684380b329
1435a09673c6
151c725d3bd9
hex10656ff042

70421311554 has 32 divisors (see below), whose sum is σ = 153718905600. Its totient is φ = 21329734800.

The previous prime is 70421311537. The next prime is 70421311577. The reversal of 70421311554 is 45511312407.

It is a super-2 number, since 2×704213115542 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109704 + ... + 390995.

It is an arithmetic number, because the mean of its divisors is an integer number (4803715800).

Almost surely, 270421311554 is an apocalyptic number.

70421311554 is an abundant number, since it is smaller than the sum of its proper divisors (83297594046).

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

70421311554 is a wasteful number, since it uses less digits than its factorization.

70421311554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502846.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 70421311554 in words is "seventy billion, four hundred twenty-one million, three hundred eleven thousand, five hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 66 2131 4262 6393 12786 23441 46882 70323 140646 500699 1001398 1502097 3004194 5507689 11015378 16523067 33046134 1066989569 2133979138 3200968707 6401937414 11736885259 23473770518 35210655777 70421311554