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70747716 = 223131923869
BaseRepresentation
bin1000011011110…
…00011001000100
311221010100121210
410031320121010
5121102411331
611004211420
71516226364
oct415703104
9157110553
1070747716
1136a31896
121b839b70
1311870c70
1495789a4
156327446
hex4378644

70747716 has 48 divisors (see below), whose sum is σ = 187140800. Its totient is φ = 20621952.

The previous prime is 70747711. The next prime is 70747723. The reversal of 70747716 is 61774707.

70747716 = T299 + T300 + ... + T766.

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

It is not an unprimeable number, because it can be changed into a prime (70747711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8971 + ... + 14898.

Almost surely, 270747716 is an apocalyptic number.

70747716 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

70747716 is an abundant number, since it is smaller than the sum of its proper divisors (116393084).

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

70747716 is a wasteful number, since it uses less digits than its factorization.

70747716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23908 (or 23906 counting only the distinct ones).

The product of its (nonzero) digits is 57624, while the sum is 39.

The square root of 70747716 is about 8411.1661498273. The cubic root of 70747716 is about 413.5907412124.

The spelling of 70747716 in words is "seventy million, seven hundred forty-seven thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 76 78 114 156 228 247 494 741 988 1482 2964 23869 47738 71607 95476 143214 286428 310297 453511 620594 907022 930891 1241188 1360533 1814044 1861782 2721066 3723564 5442132 5895643 11791286 17686929 23582572 35373858 70747716