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70075764 = 223211311569
BaseRepresentation
bin1000010110101…
…00010101110100
311212212012212200
410023110111310
5120414411024
610541544500
71510430343
oct413242564
9155765780
1070075764
1136612a60
121b575130
1311697165
149441b5a
1562432c9
hex42d4574

70075764 has 72 divisors (see below), whose sum is σ = 194201280. Its totient is φ = 21129600.

The previous prime is 70075729. The next prime is 70075771. The reversal of 70075764 is 46757007.

It is a super-2 number, since 2×700757642 = 9821225400367392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122872 + ... + 123440.

It is an arithmetic number, because the mean of its divisors is an integer number (2697240).

Almost surely, 270075764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70075764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97100640).

70075764 is an abundant number, since it is smaller than the sum of its proper divisors (124125516).

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

70075764 is a wasteful number, since it uses less digits than its factorization.

70075764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 70075764 is about 8371.1268058727. The cubic root of 70075764 is about 412.2771644928.

The spelling of 70075764 in words is "seventy million, seventy-five thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 311 396 569 622 933 1138 1244 1707 1866 2276 2799 3414 3421 3732 5121 5598 6259 6828 6842 10242 10263 11196 12518 13684 18777 20484 20526 25036 30789 37554 41052 56331 61578 75108 112662 123156 176959 225324 353918 530877 707836 1061754 1592631 1946549 2123508 3185262 3893098 5839647 6370524 7786196 11679294 17518941 23358588 35037882 70075764