Search a number
-
+
387255030 = 23522956369
BaseRepresentation
bin10111000101010…
…000101011110110
3222222200121000220
4113011100223312
51243114130110
6102232115210
712411420261
oct2705205366
9888617026
10387255030
11189660488
12a9835b06
13622cb4b6
1439607cd8
1523ee7370
hex17150af6

387255030 has 32 divisors (see below), whose sum is σ = 933487200. Its totient is φ = 102815232.

The previous prime is 387254977. The next prime is 387255049. The reversal of 387255030 is 30552783.

It is a junction number, because it is equal to n+sod(n) for n = 387254982 and 387255000.

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, 21315 + ... + 35054.

It is an arithmetic number, because the mean of its divisors is an integer number (29171475).

Almost surely, 2387255030 is an apocalyptic number.

387255030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

387255030 is an abundant number, since it is smaller than the sum of its proper divisors (546232170).

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

387255030 is a wasteful number, since it uses less digits than its factorization.

387255030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56608.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 387255030 is about 19678.7964571007. The cubic root of 387255030 is about 728.8962051226.

The spelling of 387255030 in words is "three hundred eighty-seven million, two hundred fifty-five thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 229 458 687 1145 1374 2290 3435 6870 56369 112738 169107 281845 338214 563690 845535 1691070 12908501 25817002 38725503 64542505 77451006 129085010 193627515 387255030