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190348988 = 2252390989
BaseRepresentation
bin10110101100001…
…11111010111100
3111021011201201112
423112013322330
5342212131423
630515501152
74500640214
oct1326077274
9437151645
10190348988
11984a1015
12538b77b8
133058854b
141b3cd244
1511a9ea78
hexb587ebc

190348988 has 12 divisors (see below), whose sum is σ = 333751320. Its totient is φ = 94991472.

The previous prime is 190348969. The next prime is 190348993. The reversal of 190348988 is 889843091.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43403 + ... + 47586.

It is an arithmetic number, because the mean of its divisors is an integer number (27812610).

Almost surely, 2190348988 is an apocalyptic number.

It is an amenable number.

190348988 is a deficient number, since it is larger than the sum of its proper divisors (143402332).

190348988 is a wasteful number, since it uses less digits than its factorization.

190348988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91516 (or 91514 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 190348988 is about 13796.7020696977. The cubic root of 190348988 is about 575.2414743807.

The spelling of 190348988 in words is "one hundred ninety million, three hundred forty-eight thousand, nine hundred eighty-eight".

Divisors: 1 2 4 523 1046 2092 90989 181978 363956 47587247 95174494 190348988