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385101988 = 221073472593
BaseRepresentation
bin10110111101000…
…011000010100100
3222211122012121121
4112331003002210
51242041230423
6102114023324
712354212215
oct2675030244
9884565547
10385101988
1118841a907
12a8b77b44
1361a264cb
143920740c
1523c1e45d
hex16f430a4

385101988 has 24 divisors (see below), whose sum is σ = 682450272. Its totient is φ = 190128384.

The previous prime is 385101961. The next prime is 385102001. The reversal of 385101988 is 889101583.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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 in 7 ways as a sum of consecutive naturals, for example, 147220 + ... + 149812.

It is an arithmetic number, because the mean of its divisors is an integer number (28435428).

Almost surely, 2385101988 is an apocalyptic number.

It is an amenable number.

385101988 is a deficient number, since it is larger than the sum of its proper divisors (297348284).

385101988 is a wasteful number, since it uses less digits than its factorization.

385101988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051 (or 3049 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 43.

The square root of 385101988 is about 19624.0155931450. The cubic root of 385101988 is about 727.5428665160.

The spelling of 385101988 in words is "three hundred eighty-five million, one hundred one thousand, nine hundred eighty-eight".

Divisors: 1 2 4 107 214 347 428 694 1388 2593 5186 10372 37129 74258 148516 277451 554902 899771 1109804 1799542 3599084 96275497 192550994 385101988