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141663890 = 25172273671
BaseRepresentation
bin10000111000110…
…01111010010010
3100212120021022202
420130121322102
5242231221030
622020203202
73340060154
oct1034317222
9325507282
10141663890
1172a691a5
123b539502
13234707b4
1414b58ad4
15c684745
hex8719e92

141663890 has 32 divisors (see below), whose sum is σ = 271257984. Its totient is φ = 53082880.

The previous prime is 141663889. The next prime is 141663901. The reversal of 141663890 is 98366141.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36755 + ... + 40425.

It is an arithmetic number, because the mean of its divisors is an integer number (8476812).

Almost surely, 2141663890 is an apocalyptic number.

141663890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

141663890 is a deficient number, since it is larger than the sum of its proper divisors (129594094).

141663890 is a wasteful number, since it uses less digits than its factorization.

141663890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 141663890 is about 11902.2640703355. The cubic root of 141663890 is about 521.2983948687.

The spelling of 141663890 in words is "one hundred forty-one million, six hundred sixty-three thousand, eight hundred ninety".

Divisors: 1 2 5 10 17 34 85 170 227 454 1135 2270 3671 3859 7342 7718 18355 19295 36710 38590 62407 124814 312035 624070 833317 1666634 4166585 8333170 14166389 28332778 70831945 141663890