Search a number
-
+
18150875680 = 255779205141
BaseRepresentation
bin10000111001111000…
…000110001000100000
31201211222002000112211
4100321320012020200
5244133111010210
612201032131504
71211536616620
oct207170061040
951758060484
1018150875680
117774772603
123626836b94
131933577c32
14c428a2880
1571375c38a
hex439e06220

18150875680 has 96 divisors (see below), whose sum is σ = 49627952640. Its totient is φ = 6144353280.

The previous prime is 18150875669. The next prime is 18150875683. The reversal of 18150875680 is 8657805181.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18150875683) 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, 14091 + ... + 191050.

It is an arithmetic number, because the mean of its divisors is an integer number (516957840).

Almost surely, 218150875680 is an apocalyptic number.

18150875680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18150875680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24813976320).

18150875680 is an abundant number, since it is smaller than the sum of its proper divisors (31477076960).

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

18150875680 is a wasteful number, since it uses less digits than its factorization.

18150875680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205242 (or 205234 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 49.

The spelling of 18150875680 in words is "eighteen billion, one hundred fifty million, eight hundred seventy-five thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 79 80 112 140 158 160 224 280 316 395 553 560 632 790 1106 1120 1264 1580 2212 2528 2765 3160 4424 5530 6320 8848 11060 12640 17696 22120 44240 88480 205141 410282 820564 1025705 1435987 1641128 2051410 2871974 3282256 4102820 5743948 6564512 7179935 8205640 11487896 14359870 16206139 16411280 22975792 28719740 32412278 32822560 45951584 57439480 64824556 81030695 113442973 114878960 129649112 162061390 226885946 229757920 259298224 324122780 453771892 518596448 567214865 648245560 907543784 1134429730 1296491120 1815087568 2268859460 2592982240 3630175136 4537718920 9075437840 18150875680