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47988218918 = 240515923009
BaseRepresentation
bin101100101100010100…
…100001110000100110
311120212101022002210102
4230230110201300212
51241234441001133
634013454024102
73316123062533
oct545424416046
9146771262712
1047988218918
111939610a162
1293731a8032
1346aa02c213
142473489d8a
1513ace567e8
hexb2c521c26

47988218918 has 8 divisors (see below), whose sum is σ = 72000109560. Its totient is φ = 23988182400.

The previous prime is 47988218909. The next prime is 47988218933. The reversal of 47988218918 is 81981288974.

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, 2953403 + ... + 2969606.

It is an arithmetic number, because the mean of its divisors is an integer number (9000013695).

Almost surely, 247988218918 is an apocalyptic number.

47988218918 is a deficient number, since it is larger than the sum of its proper divisors (24011890642).

47988218918 is a wasteful number, since it uses less digits than its factorization.

47988218918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927062.

The product of its digits is 18579456, while the sum is 65.

The spelling of 47988218918 in words is "forty-seven billion, nine hundred eighty-eight million, two hundred eighteen thousand, nine hundred eighteen".

Divisors: 1 2 4051 8102 5923009 11846018 23994109459 47988218918