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3881133490 = 2513171799811
BaseRepresentation
bin1110011101010101…
…0110010110110010
3101000111001000020211
43213111112112302
530422032232430
61441042054334
7165115042663
oct34725262662
911014030224
103881133490
111711887043
1290394a3aa
1349b1036c0
1428b65136a
1517aae572a
hexe75565b2

3881133490 has 64 divisors (see below), whose sum is σ = 8011301760. Its totient is φ = 1341066240.

The previous prime is 3881133469. The next prime is 3881133491. The reversal of 3881133490 is 943311883.

It is not an unprimeable number, because it can be changed into a prime (3881133491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390685 + ... + 400495.

It is an arithmetic number, because the mean of its divisors is an integer number (125176590).

Almost surely, 23881133490 is an apocalyptic number.

3881133490 is an abundant number, since it is smaller than the sum of its proper divisors (4130168270).

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

3881133490 is a wasteful number, since it uses less digits than its factorization.

3881133490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10027.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 3881133490 is about 62298.7438878185. The cubic root of 3881133490 is about 1571.5186044716.

The spelling of 3881133490 in words is "three billion, eight hundred eighty-one million, one hundred thirty-three thousand, four hundred ninety".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 179 221 358 442 895 1105 1790 2210 2327 3043 4654 6086 9811 11635 15215 19622 23270 30430 39559 49055 79118 98110 127543 166787 197795 255086 333574 395590 637715 833935 1275430 1667870 1756169 2168231 3512338 4336462 8780845 10841155 17561690 21682310 22830197 29854873 45660394 59709746 114150985 149274365 228301970 298548730 388113349 776226698 1940566745 3881133490