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70680127749 = 3711305974579
BaseRepresentation
bin100000111010011011…
…1010010100100000101
320202102211010111202020
41001310313102210011
52124223103041444
652245304233353
75051343113250
oct1016467224405
9222384114666
1070680127749
1127a800a9120
121184676b859
1368853197ca
1435c709a097
151c8a1aa119
hex1074dd2905

70680127749 has 16 divisors (see below), whose sum is σ = 117494238720. Its totient is φ = 36716949360.

The previous prime is 70680127723. The next prime is 70680127769. The reversal of 70680127749 is 94772108607.

It is not a de Polignac number, because 70680127749 - 28 = 70680127493 is a prime.

It is a super-2 number, since 2×706801277492 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70680127769) 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, 152987059 + ... + 152987520.

It is an arithmetic number, because the mean of its divisors is an integer number (7343389920).

Almost surely, 270680127749 is an apocalyptic number.

It is an amenable number.

70680127749 is a deficient number, since it is larger than the sum of its proper divisors (46814110971).

70680127749 is a wasteful number, since it uses less digits than its factorization.

70680127749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305974600.

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 70680127749 in words is "seventy billion, six hundred eighty million, one hundred twenty-seven thousand, seven hundred forty-nine".

Divisors: 1 3 7 11 21 33 77 231 305974579 917923737 2141822053 3365720369 6425466159 10097161107 23560042583 70680127749