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191282042 = 2722736011
BaseRepresentation
bin10110110011010…
…11101101111010
3111022221010122002
423121223231322
5342432011132
630551501002
74511604410
oct1331535572
9438833562
10191282042
1198a79036
1254087762
1330824153
141b5932b0
1511bd6262
hexb66bb7a

191282042 has 16 divisors (see below), whose sum is σ = 328110912. Its totient is φ = 81928320.

The previous prime is 191282027. The next prime is 191282051. The reversal of 191282042 is 240282191.

It is a junction number, because it is equal to n+sod(n) for n = 191281996 and 191282014.

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, 28817 + ... + 34827.

It is an arithmetic number, because the mean of its divisors is an integer number (20506932).

Almost surely, 2191282042 is an apocalyptic number.

191282042 is a deficient number, since it is larger than the sum of its proper divisors (136828870).

191282042 is a wasteful number, since it uses less digits than its factorization.

191282042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8293.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 191282042 is about 13830.4751183754. The cubic root of 191282042 is about 576.1798503609.

The spelling of 191282042 in words is "one hundred ninety-one million, two hundred eighty-two thousand, forty-two".

Divisors: 1 2 7 14 2273 4546 6011 12022 15911 31822 42077 84154 13663003 27326006 95641021 191282042