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388145372 = 2297036343
BaseRepresentation
bin10111001000101…
…010000011011100
31000001100211100112
4113020222003130
51243331122442
6102303145152
712422116106
oct2710520334
91001324315
10388145372
1118a1093aa
12a9ba51b8
1362550824
143979a576
1524121082
hex1722a0dc

388145372 has 6 divisors (see below), whose sum is σ = 679254408. Its totient is φ = 194072684.

The previous prime is 388145363. The next prime is 388145383. The reversal of 388145372 is 273541883.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 48518168 + ... + 48518175.

It is an arithmetic number, because the mean of its divisors is an integer number (113209068).

Almost surely, 2388145372 is an apocalyptic number.

It is an amenable number.

388145372 is a deficient number, since it is larger than the sum of its proper divisors (291109036).

388145372 is a wasteful number, since it uses less digits than its factorization.

388145372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97036347 (or 97036345 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 388145372 is about 19701.4053305849. The cubic root of 388145372 is about 729.4543818109.

The spelling of 388145372 in words is "three hundred eighty-eight million, one hundred forty-five thousand, three hundred seventy-two".

Divisors: 1 2 4 97036343 194072686 388145372