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47971617974 = 273426544141
BaseRepresentation
bin101100101011010101…
…001100110010110110
311120211020001200120122
4230223111030302312
51241221213233344
634012102131542
73315532011350
oct545325146266
9146736050518
1047971617974
1119387800675
129369720bb2
1346a6768c87
1424711a80d0
1513ab777aee
hexb2b54ccb6

47971617974 has 8 divisors (see below), whose sum is σ = 82237059408. Its totient is φ = 20559264840.

The previous prime is 47971617973. The next prime is 47971618001.

47971617974 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×479716179742 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47971617971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713272057 + ... + 1713272084.

It is an arithmetic number, because the mean of its divisors is an integer number (10279632426).

Almost surely, 247971617974 is an apocalyptic number.

47971617974 is a deficient number, since it is larger than the sum of its proper divisors (34265441434).

47971617974 is a wasteful number, since it uses less digits than its factorization.

47971617974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426544150.

The product of its digits is 18670176, while the sum is 62.

The spelling of 47971617974 in words is "forty-seven billion, nine hundred seventy-one million, six hundred seventeen thousand, nine hundred seventy-four".

Divisors: 1 2 7 14 3426544141 6853088282 23985808987 47971617974