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190207842 = 23112881937
BaseRepresentation
bin10110101011001…
…01011101100010
3111020220120002220
423111211131202
5342143122332
630512451510
74466511546
oct1325453542
9436816086
10190207842
1198404a70
1253849b96
1330539226
141b393a26
1511a72d2c
hexb565762

190207842 has 16 divisors (see below), whose sum is σ = 414999072. Its totient is φ = 57638720.

The previous prime is 190207837. The next prime is 190207859. The reversal of 190207842 is 248702091.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1440903 + ... + 1441034.

It is an arithmetic number, because the mean of its divisors is an integer number (25937442).

Almost surely, 2190207842 is an apocalyptic number.

190207842 is an abundant number, since it is smaller than the sum of its proper divisors (224791230).

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

190207842 is a wasteful number, since it uses less digits than its factorization.

190207842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881953.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 190207842 is about 13791.5859131573. The cubic root of 190207842 is about 575.0992564634.

It can be divided in two parts, 19020 and 7842, that added together give a palindrome (26862).

The spelling of 190207842 in words is "one hundred ninety million, two hundred seven thousand, eight hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 2881937 5763874 8645811 17291622 31701307 63402614 95103921 190207842