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378007164 = 223213975541
BaseRepresentation
bin10110100001111…
…110111001111100
3222100021202100100
4112201332321330
51233232212124
6101302001100
712240002463
oct2641767174
9870252310
10378007164
11184414417
12a6716190
13604110a2
14382bb9da
15232bc1c9
hex1687ee7c

378007164 has 36 divisors (see below), whose sum is σ = 962405080. Its totient is φ = 125094240.

The previous prime is 378007163. The next prime is 378007169. The reversal of 378007164 is 461700873.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378007163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32767 + ... + 42774.

Almost surely, 2378007164 is an apocalyptic number.

It is an amenable number.

378007164 is an abundant number, since it is smaller than the sum of its proper divisors (584397916).

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

378007164 is a wasteful number, since it uses less digits than its factorization.

378007164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75690 (or 75685 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 378007164 is about 19442.4063325505. The cubic root of 378007164 is about 723.0472470171.

The spelling of 378007164 in words is "three hundred seventy-eight million, seven thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 139 278 417 556 834 1251 1668 2502 5004 75541 151082 226623 302164 453246 679869 906492 1359738 2719476 10500199 21000398 31500597 42000796 63001194 94501791 126002388 189003582 378007164