Search a number
-
+
35131990 = 2531113329
BaseRepresentation
bin1000011000000…
…1001001010110
32110002220000211
42012001021112
532443210430
63253000034
7604421425
oct206011126
973086024
1035131990
1118916203
12b92301a
137380b7a
1449472bc
15313e72a
hex2181256

35131990 has 16 divisors (see below), whose sum is σ = 65278080. Its totient is φ = 13599360.

The previous prime is 35131939. The next prime is 35131997. The reversal of 35131990 is 9913153.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35131997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56355 + ... + 56974.

It is an arithmetic number, because the mean of its divisors is an integer number (4079880).

Almost surely, 235131990 is an apocalyptic number.

35131990 is a deficient number, since it is larger than the sum of its proper divisors (30146090).

35131990 is a wasteful number, since it uses less digits than its factorization.

35131990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113367.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 35131990 is about 5927.2244769369. The cubic root of 35131990 is about 327.5173038271.

The spelling of 35131990 in words is "thirty-five million, one hundred thirty-one thousand, nine hundred ninety".

Divisors: 1 2 5 10 31 62 155 310 113329 226658 566645 1133290 3513199 7026398 17565995 35131990