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191242054 = 2167572581
BaseRepresentation
bin10110110011000…
…01111101000110
3111022212002210001
423121201331012
5342424221204
630550551514
74511350003
oct1331417506
9438762701
10191242054
1198a50a93
125406859a
133080bba3
141b5828aa
1511bc94a4
hexb661f46

191242054 has 8 divisors (see below), whose sum is σ = 288581328. Its totient is φ = 95048280.

The previous prime is 191242039. The next prime is 191242099. The reversal of 191242054 is 450242191.

191242054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285957 + ... + 286624.

It is an arithmetic number, because the mean of its divisors is an integer number (36072666).

Almost surely, 2191242054 is an apocalyptic number.

191242054 is a deficient number, since it is larger than the sum of its proper divisors (97339274).

191242054 is a wasteful number, since it uses less digits than its factorization.

191242054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572750.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 191242054 is about 13829.0293947189. The cubic root of 191242054 is about 576.1396969390.

The spelling of 191242054 in words is "one hundred ninety-one million, two hundred forty-two thousand, fifty-four".

Divisors: 1 2 167 334 572581 1145162 95621027 191242054