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7664157348 = 2235910825081
BaseRepresentation
bin1110010001101000…
…11100001010100100
3201210010110112101120
413020310130022210
5111144011013343
63304301253540
7360632156031
oct71064341244
921703415346
107664157348
113283242941
12159a8642b0
13951aa5b63
14529c44388
152eccab683
hex1c8d1c2a4

7664157348 has 24 divisors (see below), whose sum is σ = 18186137760. Its totient is φ = 2511418560.

The previous prime is 7664157341. The next prime is 7664157349. The reversal of 7664157348 is 8437514667.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7664157348.

It is not an unprimeable number, because it can be changed into a prime (7664157341) 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, 5411833 + ... + 5413248.

It is an arithmetic number, because the mean of its divisors is an integer number (757755740).

Almost surely, 27664157348 is an apocalyptic number.

It is an amenable number.

7664157348 is an abundant number, since it is smaller than the sum of its proper divisors (10521980412).

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

7664157348 is a wasteful number, since it uses less digits than its factorization.

7664157348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10825147 (or 10825145 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The square root of 7664157348 is about 87545.1731850477. The cubic root of 7664157348 is about 1971.6120818072.

The spelling of 7664157348 in words is "seven billion, six hundred sixty-four million, one hundred fifty-seven thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 59 118 177 236 354 708 10825081 21650162 32475243 43300324 64950486 129900972 638679779 1277359558 1916039337 2554719116 3832078674 7664157348