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190230992 = 2475373439
BaseRepresentation
bin10110101011010…
…11000111010000
3111020221201212022
423111223013100
5342144342432
630513151012
74466636210
oct1325530720
9436851768
10190230992
11984203a6
125385b468
1330546923
141b39c240
1511a79b12
hexb56b1d0

190230992 has 80 divisors (see below), whose sum is σ = 436043520. Its totient is φ = 78713856.

The previous prime is 190230991. The next prime is 190231007. The reversal of 190230992 is 299032091.

190230992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190230991) 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, 433109 + ... + 433547.

It is an arithmetic number, because the mean of its divisors is an integer number (5450544).

Almost surely, 2190230992 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 190230992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218021760).

190230992 is an abundant number, since it is smaller than the sum of its proper divisors (245812528).

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

190230992 is a wasteful number, since it uses less digits than its factorization.

190230992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 190230992 is about 13792.4251674606. The cubic root of 190230992 is about 575.1225870957.

The spelling of 190230992 in words is "one hundred ninety million, two hundred thirty thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 53 56 73 106 112 146 212 292 371 424 439 511 584 742 848 878 1022 1168 1484 1756 2044 2968 3073 3512 3869 4088 5936 6146 7024 7738 8176 12292 15476 23267 24584 27083 30952 32047 46534 49168 54166 61904 64094 93068 108332 128188 162869 186136 216664 224329 256376 325738 372272 433328 448658 512752 651476 897316 1302952 1698491 1794632 2605904 3396982 3589264 6793964 11889437 13587928 23778874 27175856 47557748 95115496 190230992