Search a number
-
+
154992068 = 227111074703
BaseRepresentation
bin10010011110011…
…11110111000100
3101210122102010222
421033033313010
5304134221233
623214003512
73561260630
oct1117176704
9353572128
10154992068
117a541920
1243aa6598
13261591aa
1416827dc0
15d918898
hex93cfdc4

154992068 has 48 divisors (see below), whose sum is σ = 341397504. Its totient is φ = 59809440.

The previous prime is 154992059. The next prime is 154992083. The reversal of 154992068 is 860299451.

It is a super-2 number, since 2×1549920682 = 48045082285833248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 30605 + ... + 35307.

It is an arithmetic number, because the mean of its divisors is an integer number (7112448).

Almost surely, 2154992068 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 154992068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170698752).

154992068 is an abundant number, since it is smaller than the sum of its proper divisors (186405436).

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

154992068 is a wasteful number, since it uses less digits than its factorization.

154992068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832 (or 4830 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 154992068 is about 12449.5810371273. The cubic root of 154992068 is about 537.1593722826.

The spelling of 154992068 in words is "one hundred fifty-four million, nine hundred ninety-two thousand, sixty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 107 154 214 308 428 749 1177 1498 2354 2996 4703 4708 8239 9406 16478 18812 32921 32956 51733 65842 103466 131684 206932 362131 503221 724262 1006442 1448524 2012884 3522547 5535431 7045094 11070862 14090188 22141724 38748017 77496034 154992068