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378472500 = 223554789
BaseRepresentation
bin10110100011110…
…000100000110100
3222101011101200000
4112203300200310
51233342110000
6101315551300
712243651240
oct2643604064
9871141600
10378472500
11184701a9a
12a68bb530
1360544b33
143839d420
1523360000
hex168f0834

378472500 has 360 divisors, whose sum is σ = 1432791360. Its totient is φ = 85536000.

The previous prime is 378472499. The next prime is 378472543. The reversal of 378472500 is 5274873.

378472500 is a `hidden beast` number, since 3 + 7 + 84 + 72 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4252456 + ... + 4252544.

It is an arithmetic number, because the mean of its divisors is an integer number (3979976).

Almost surely, 2378472500 is an apocalyptic number.

378472500 is a gapful number since it is divisible by the number (30) 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 378472500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716395680).

378472500 is an abundant number, since it is smaller than the sum of its proper divisors (1054318860).

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

378472500 is an equidigital number, since it uses as much as digits as its factorization.

378472500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 378472500 is about 19454.3696890956. The cubic root of 378472500 is about 723.3438215944.

It can be divided in two parts, 378 and 472500, that added together give a triangular number (472878 = T972).

The spelling of 378472500 in words is "three hundred seventy-eight million, four hundred seventy-two thousand, five hundred".