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190950747 = 31337132329
BaseRepresentation
bin10110110000110…
…10110101011011
3111022022022011220
423120122311123
5342340410442
630540423123
74506024501
oct1330326533
9438268156
10190950747
1198872139
1253b47aa3
1330739410
141b508671
1511b6ceec
hexb61ad5b

190950747 has 16 divisors (see below), whose sum is σ = 281598240. Its totient is φ = 114331392.

The previous prime is 190950733. The next prime is 190950763. The reversal of 190950747 is 747059091.

It is a happy number.

It is not a de Polignac number, because 190950747 - 223 = 182562139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190950699 and 190950708.

It is not an unprimeable number, because it can be changed into a prime (190910747) 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, 64722 + ... + 67607.

It is an arithmetic number, because the mean of its divisors is an integer number (17599890).

Almost surely, 2190950747 is an apocalyptic number.

190950747 is a deficient number, since it is larger than the sum of its proper divisors (90647493).

190950747 is a wasteful number, since it uses less digits than its factorization.

190950747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132382.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 190950747 is about 13818.4929351938. The cubic root of 190950747 is about 575.8470158191.

The spelling of 190950747 in words is "one hundred ninety million, nine hundred fifty thousand, seven hundred forty-seven".

Divisors: 1 3 13 37 39 111 481 1443 132329 396987 1720277 4896173 5160831 14688519 63650249 190950747