Search a number
-
+
190507630 = 2543443041
BaseRepresentation
bin10110101101011…
…10101001101110
3111021110210100011
423112232221232
5342232221010
630523123434
74502200555
oct1326565156
9437423304
10190507630
119859a225
125397357a
1330612811
141b430d9c
1511ad1a8a
hexb5aea6e

190507630 has 16 divisors (see below), whose sum is σ = 350889264. Its totient is φ = 74430720.

The previous prime is 190507613. The next prime is 190507633. The reversal of 190507630 is 36705091.

It is a junction number, because it is equal to n+sod(n) for n = 190507592 and 190507601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190507633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 221091 + ... + 221950.

It is an arithmetic number, because the mean of its divisors is an integer number (21930579).

Almost surely, 2190507630 is an apocalyptic number.

190507630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190507630 is a deficient number, since it is larger than the sum of its proper divisors (160381634).

190507630 is a wasteful number, since it uses less digits than its factorization.

190507630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443091.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 190507630 is about 13802.4501448112. The cubic root of 190507630 is about 575.4012372782.

The spelling of 190507630 in words is "one hundred ninety million, five hundred seven thousand, six hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 443041 886082 2215205 4430410 19050763 38101526 95253815 190507630