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390199248 = 24331914729
BaseRepresentation
bin10111010000011…
…111011111010000
31000012020011202000
4113100133133100
51244342333443
6102415154000
712445432065
oct2720373720
91005204660
10390199248
1119029151a
12aa815900
1362abc63a
1439b72c6c
15243c98d3
hex1741f7d0

390199248 has 80 divisors (see below), whose sum is σ = 1126118400. Its totient is φ = 129358080.

The previous prime is 390199241. The next prime is 390199253. The reversal of 390199248 is 842991093.

390199248 is a `hidden beast` number, since 390 + 19 + 9 + 248 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390199241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80148 + ... + 84876.

It is an arithmetic number, because the mean of its divisors is an integer number (14076480).

Almost surely, 2390199248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390199248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563059200).

390199248 is an abundant number, since it is smaller than the sum of its proper divisors (735919152).

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

390199248 is a wasteful number, since it uses less digits than its factorization.

390199248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937 (or 4925 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 390199248 is about 19753.4616713122. The cubic root of 390199248 is about 730.7387579753.

The spelling of 390199248 in words is "three hundred ninety million, one hundred ninety-nine thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 191 216 382 432 573 764 1146 1528 1719 2292 3056 3438 4584 4729 5157 6876 9168 9458 10314 13752 14187 18916 20628 27504 28374 37832 41256 42561 56748 75664 82512 85122 113496 127683 170244 226992 255366 340488 510732 680976 903239 1021464 1806478 2042928 2709717 3612956 5419434 7225912 8129151 10838868 14451824 16258302 21677736 24387453 32516604 43355472 48774906 65033208 97549812 130066416 195099624 390199248