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38214978 = 236369163
BaseRepresentation
bin1001000111000…
…1110101000010
32122220112002120
42101301311002
534240334403
63443025110
7642551634
oct221616502
978815076
1038214978
111a63152a
121096b196
137bc0219
14510aa54
15354ce53
hex2471d42

38214978 has 8 divisors (see below), whose sum is σ = 76429968. Its totient is φ = 12738324.

The previous prime is 38214973. The next prime is 38215007. The reversal of 38214978 is 87941283.

It is a sphenic number, since it is the product of 3 distinct primes.

38214978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (38214973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3184576 + ... + 3184587.

It is an arithmetic number, because the mean of its divisors is an integer number (9553746).

Almost surely, 238214978 is an apocalyptic number.

38214978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38214978 is a wasteful number, since it uses less digits than its factorization.

38214978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6369168.

The product of its digits is 96768, while the sum is 42.

The square root of 38214978 is about 6181.8264291389. The cubic root of 38214978 is about 336.8303407444.

The spelling of 38214978 in words is "thirty-eight million, two hundred fourteen thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 6369163 12738326 19107489 38214978