Search a number
-
+
190037442 = 2374524701
BaseRepresentation
bin10110101001110…
…11110111000010
3111020120220100210
423110323313002
5342122144232
630505054550
74465202010
oct1324736702
9436526323
10190037442
11982a8a41
1253787456
13304a97ba
141b34b8b0
1511a3c5cc
hexb53bdc2

190037442 has 16 divisors (see below), whose sum is σ = 434371392. Its totient is φ = 54296400.

The previous prime is 190037413. The next prime is 190037443. The reversal of 190037442 is 244730091.

It is a happy number.

It is a super-2 number, since 2×1900374422 = 72228458723806728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190037443) 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, 2262309 + ... + 2262392.

It is an arithmetic number, because the mean of its divisors is an integer number (27148212).

Almost surely, 2190037442 is an apocalyptic number.

190037442 is an abundant number, since it is smaller than the sum of its proper divisors (244333950).

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

190037442 is a wasteful number, since it uses less digits than its factorization.

190037442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524713.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 190037442 is about 13785.4068492736. The cubic root of 190037442 is about 574.9274686079.

The spelling of 190037442 in words is "one hundred ninety million, thirty-seven thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 4524701 9049402 13574103 27148206 31672907 63345814 95018721 190037442