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4157255284 = 2271328340357
BaseRepresentation
bin1111011111001010…
…1010111001110100
3101201201121110010221
43313302222321310
532003224132114
61524304224124
7205010041540
oct36762527164
911651543127
104157255284
111843731476
1298030b044
13513390a90
142b61aaa20
15194e89524
hexf7caae74

4157255284 has 48 divisors (see below), whose sum is σ = 8985950848. Its totient is φ = 1638776448.

The previous prime is 4157255269. The next prime is 4157255317. The reversal of 4157255284 is 4825527514.

It is a self number, because there is not a number n which added to its sum of digits gives 4157255284.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82834 + ... + 123190.

Almost surely, 24157255284 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 4157255284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4492975424).

4157255284 is an abundant number, since it is smaller than the sum of its proper divisors (4828695564).

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

4157255284 is a wasteful number, since it uses less digits than its factorization.

4157255284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40664 (or 40662 counting only the distinct ones).

The product of its digits is 448000, while the sum is 43.

The square root of 4157255284 is about 64476.7809680353. The cubic root of 4157255284 is about 1607.9365156698.

The spelling of 4157255284 in words is "four billion, one hundred fifty-seven million, two hundred fifty-five thousand, two hundred eighty-four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 283 364 566 1132 1981 3679 3962 7358 7924 14716 25753 40357 51506 80714 103012 161428 282499 524641 564998 1049282 1129996 2098564 3672487 7344974 11421031 14689948 22842062 45684124 79947217 148473403 159894434 296946806 319788868 593893612 1039313821 2078627642 4157255284