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70748916 = 2237842249
BaseRepresentation
bin1000011011110…
…00101011110100
311221010102021020
410031320223310
5121102431131
611004221140
71516233030
oct415705364
9157112236
1070748916
1136a32787
121b83a7b0
1311871684
1495791c0
156327996
hex4378af4

70748916 has 24 divisors (see below), whose sum is σ = 188664000. Its totient is φ = 20213952.

The previous prime is 70748911. The next prime is 70748927. The reversal of 70748916 is 61984707.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70748911) 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, 421041 + ... + 421208.

It is an arithmetic number, because the mean of its divisors is an integer number (7861000).

Almost surely, 270748916 is an apocalyptic number.

It is an amenable number.

70748916 is an abundant number, since it is smaller than the sum of its proper divisors (117915084).

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

70748916 is a wasteful number, since it uses less digits than its factorization.

70748916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842263 (or 842261 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 70748916 is about 8411.2374832720. The cubic root of 70748916 is about 413.5930795969.

The spelling of 70748916 in words is "seventy million, seven hundred forty-eight thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 842249 1684498 2526747 3368996 5053494 5895743 10106988 11791486 17687229 23582972 35374458 70748916