Search a number
-
+
387390696 = 2337112171959
BaseRepresentation
bin10111000101110…
…001110011101000
3222222221111010120
4113011301303220
51243133000241
6102235043240
712412523640
oct2705616350
9888844116
10387390696
11189743400
12a98a0520
1362348184
1439641520
1524022666
hex17171ce8

387390696 has 384 divisors, whose sum is σ = 1378944000. Its totient is φ = 88197120.

The previous prime is 387390691. The next prime is 387390719. The reversal of 387390696 is 696093783.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387390691) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6565915 + ... + 6565973.

It is an arithmetic number, because the mean of its divisors is an integer number (3591000).

Almost surely, 2387390696 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 387390696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (689472000).

387390696 is an abundant number, since it is smaller than the sum of its proper divisors (991553304).

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

387390696 is a wasteful number, since it uses less digits than its factorization.

387390696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 387390696 is about 19682.2431648428. The cubic root of 387390696 is about 728.9813125924.

The spelling of 387390696 in words is "three hundred eighty-seven million, three hundred ninety thousand, six hundred ninety-six".