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190969520 = 2457341017
BaseRepresentation
bin10110110000111…
…11011010110000
3111022100020221012
423120133122300
5342342011040
630541050052
74506133310
oct1330373260
9438306835
10190969520
1198885255
1253b56928
1330744b21
141b511440
1511b73865
hexb61f6b0

190969520 has 40 divisors (see below), whose sum is σ = 507434784. Its totient is φ = 65475072.

The previous prime is 190969511. The next prime is 190969523. The reversal of 190969520 is 25969091.

190969520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (190969523) 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, 169949 + ... + 171068.

Almost surely, 2190969520 is an apocalyptic number.

190969520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190969520 is an abundant number, since it is smaller than the sum of its proper divisors (316465264).

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

190969520 is a wasteful number, since it uses less digits than its factorization.

190969520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341037 (or 341031 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 190969520 is about 13819.1721893896. The cubic root of 190969520 is about 575.8658863428.

The spelling of 190969520 in words is "one hundred ninety million, nine hundred sixty-nine thousand, five hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 341017 682034 1364068 1705085 2387119 2728136 3410170 4774238 5456272 6820340 9548476 11935595 13640680 19096952 23871190 27281360 38193904 47742380 95484760 190969520