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38180023 = 723237143
BaseRepresentation
bin1001000110100…
…1010010110111
32122211202010221
42101221102313
534233230043
63442155211
7642345010
oct221512267
978752127
1038180023
111a608242
1210952b07
137baa33b
1450dc007
1535428ed
hex24694b7

38180023 has 8 divisors (see below), whose sum is σ = 45531648. Its totient is φ = 31302744.

The previous prime is 38179997. The next prime is 38180029. The reversal of 38180023 is 32008183.

38180023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 38180023 - 25 = 38179991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38180023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38180029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118411 + ... + 118732.

It is an arithmetic number, because the mean of its divisors is an integer number (5691456).

Almost surely, 238180023 is an apocalyptic number.

38180023 is a deficient number, since it is larger than the sum of its proper divisors (7351625).

38180023 is a wasteful number, since it uses less digits than its factorization.

38180023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237173.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 38180023 is about 6178.9985434535. The cubic root of 38180023 is about 336.7276105511.

The spelling of 38180023 in words is "thirty-eight million, one hundred eighty thousand, twenty-three".

Divisors: 1 7 23 161 237143 1660001 5454289 38180023