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190699068 = 223773137227
BaseRepresentation
bin10110101110111…
…01011000111100
3111021211111221110
423113131120330
5342304332233
630531202020
74503625650
oct1327353074
9437744843
10190699068
119871003a
1253a46310
133067b9b1
141b480a60
1511b1d663
hexb5dd63c

190699068 has 96 divisors (see below), whose sum is σ = 521547264. Its totient is φ = 53111808.

The previous prime is 190699039. The next prime is 190699087. The reversal of 190699068 is 860996091.

It is a super-2 number, since 2×1906990682 = 72732269072137248, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 839971 + ... + 840197.

It is an arithmetic number, because the mean of its divisors is an integer number (5432784).

Almost surely, 2190699068 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 190699068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260773632).

190699068 is an abundant number, since it is smaller than the sum of its proper divisors (330848196).

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

190699068 is a wasteful number, since it uses less digits than its factorization.

190699068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 190699068 is about 13809.3833316336. The cubic root of 190699068 is about 575.5939098507.

The spelling of 190699068 in words is "one hundred ninety million, six hundred ninety-nine thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 73 84 137 146 219 227 274 292 411 438 454 511 548 681 822 876 908 959 1022 1362 1533 1589 1644 1918 2044 2724 2877 3066 3178 3836 4767 5754 6132 6356 9534 10001 11508 16571 19068 20002 30003 31099 33142 40004 49713 60006 62198 66284 70007 93297 99426 115997 120012 124396 140014 186594 198852 210021 217693 231994 280028 347991 373188 420042 435386 463988 653079 695982 840084 870772 1306158 1391964 2270227 2612316 4540454 6810681 9080908 13621362 15891589 27242724 31783178 47674767 63566356 95349534 190699068