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387169398 = 2327111372039
BaseRepresentation
bin10111000100111…
…011110001110110
3222222112020120100
4113010323301312
51243103410043
6102230214530
712410612520
oct2704736166
9888466510
10387169398
11189602110
12a97b4446
136229b525
14395c4a10
1523ecbcd3
hex1713bc76

387169398 has 96 divisors (see below), whose sum is σ = 1054010880. Its totient is φ = 99780480.

The previous prime is 387169331. The next prime is 387169411. The reversal of 387169398 is 893961783.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188863 + ... + 190901.

It is an arithmetic number, because the mean of its divisors is an integer number (10979280).

Almost surely, 2387169398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387169398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527005440).

387169398 is an abundant number, since it is smaller than the sum of its proper divisors (666841482).

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

387169398 is a wasteful number, since it uses less digits than its factorization.

387169398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202 (or 2199 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 387169398 is about 19676.6205939943. The cubic root of 387169398 is about 728.8424752924.

The spelling of 387169398 in words is "three hundred eighty-seven million, one hundred sixty-nine thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 7 9 11 14 18 21 22 33 42 63 66 77 99 126 137 154 198 231 274 411 462 693 822 959 1233 1386 1507 1918 2039 2466 2877 3014 4078 4521 5754 6117 8631 9042 10549 12234 13563 14273 17262 18351 21098 22429 27126 28546 31647 36702 42819 44858 63294 67287 85638 94941 128457 134574 157003 189882 201861 256914 279343 314006 403722 471009 558686 838029 942018 1413027 1676058 1955401 2514087 2826054 3072773 3910802 5028174 5866203 6145546 9218319 11732406 17598609 18436638 21509411 27654957 35197218 43018822 55309914 64528233 129056466 193584699 387169398