Search a number
-
+
137869900 = 22527892213
BaseRepresentation
bin10000011011110…
…11101001001100
3100121102111221121
420031323221030
5240243314100
621403010324
73262606030
oct1015735114
9317374847
10137869900
1170907773
123a2099a4
132274292c
141444c1c0
15c18551a
hex837ba4c

137869900 has 72 divisors (see below), whose sum is σ = 345915360. Its totient is φ = 46717440.

The previous prime is 137869891. The next prime is 137869903. The reversal of 137869900 is 9968731.

137869900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (137869903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61194 + ... + 63406.

It is an arithmetic number, because the mean of its divisors is an integer number (4804380).

Almost surely, 2137869900 is an apocalyptic number.

137869900 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 137869900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172957680).

137869900 is an abundant number, since it is smaller than the sum of its proper divisors (208045460).

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

137869900 is a wasteful number, since it uses less digits than its factorization.

137869900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323 (or 2316 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 137869900 is about 11741.8013950160. The cubic root of 137869900 is about 516.6024801752.

The spelling of 137869900 in words is "one hundred thirty-seven million, eight hundred sixty-nine thousand, nine hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 89 100 140 175 178 350 356 445 623 700 890 1246 1780 2213 2225 2492 3115 4426 4450 6230 8852 8900 11065 12460 15491 15575 22130 30982 31150 44260 55325 61964 62300 77455 110650 154910 196957 221300 309820 387275 393914 774550 787828 984785 1378699 1549100 1969570 2757398 3939140 4923925 5514796 6893495 9847850 13786990 19695700 27573980 34467475 68934950 137869900