Search a number
-
+
154272980 = 225371631279
BaseRepresentation
bin10010011001000…
…00010011010100
3101202021212202002
421030200103110
5303443213410
623150334432
73552204311
oct1114402324
9352255662
10154272980
117a0a0634
12437ba418
1325c66ab4
14166bbd08
15d8257a5
hex93204d4

154272980 has 48 divisors (see below), whose sum is σ = 335032320. Its totient is φ = 59626368.

The previous prime is 154272973. The next prime is 154272991. The reversal of 154272980 is 89272451.

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, 119981 + ... + 121259.

It is an arithmetic number, because the mean of its divisors is an integer number (6979840).

Almost surely, 2154272980 is an apocalyptic number.

154272980 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 154272980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167516160).

154272980 is an abundant number, since it is smaller than the sum of its proper divisors (180759340).

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

154272980 is a wasteful number, since it uses less digits than its factorization.

154272980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 154272980 is about 12420.6674538851. The cubic root of 154272980 is about 536.3273646221.

The spelling of 154272980 in words is "one hundred fifty-four million, two hundred seventy-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 163 185 326 370 652 740 815 1279 1630 2558 3260 5116 6031 6395 12062 12790 24124 25580 30155 47323 60310 94646 120620 189292 208477 236615 416954 473230 833908 946460 1042385 2084770 4169540 7713649 15427298 30854596 38568245 77136490 154272980