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70072023648 = 25311173903299
BaseRepresentation
bin100000101000010011…
…1100011101001100000
320200212102212121202010
41001100213203221200
52122001414224043
652105102352520
75030310242064
oct1012047435140
9220772777663
1070072023648
1127798915550
12116b6b8b740
1367b93442b3
14356a403aa4
151c51adb133
hex10509e3a60

70072023648 has 96 divisors (see below), whose sum is σ = 212464425600. Its totient is φ = 19984885760.

The previous prime is 70072023647. The next prime is 70072023673. The reversal of 70072023648 is 84632027007.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70072023647) 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, 1933698 + ... + 1969601.

It is an arithmetic number, because the mean of its divisors is an integer number (2213171100).

Almost surely, 270072023648 is an apocalyptic number.

It is an amenable number.

70072023648 is an abundant number, since it is smaller than the sum of its proper divisors (142392401952).

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

70072023648 is a wasteful number, since it uses less digits than its factorization.

70072023648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903340 (or 3903332 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 70072023648 in words is "seventy billion, seventy-two million, twenty-three thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 17 22 24 32 33 34 44 48 51 66 68 88 96 102 132 136 176 187 204 264 272 352 374 408 528 544 561 748 816 1056 1122 1496 1632 2244 2992 4488 5984 8976 17952 3903299 7806598 11709897 15613196 23419794 31226392 42936289 46839588 62452784 66356083 85872578 93679176 124905568 128808867 132712166 171745156 187358352 199068249 257617734 265424332 343490312 374716704 398136498 515235468 530848664 686980624 729916913 796272996 1030470936 1061697328 1373961248 1459833826 1592545992 2060941872 2123394656 2189750739 2919667652 3185091984 4121883744 4379501478 5839335304 6370183968 8759002956 11678670608 17518005912 23357341216 35036011824 70072023648