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47681073740 = 2254355443109
BaseRepresentation
bin101100011010000000…
…110111001001001100
311120001222100111211002
4230122000313021030
51240122323324430
633523202515432
73305403303536
oct543200671114
9146058314732
1047681073740
11192487a5473
1292a8365b78
13465b4cc101
142444776856
151390ed5845
hexb1a03724c

47681073740 has 24 divisors (see below), whose sum is σ = 102458867280. Its totient is φ = 18628884288.

The previous prime is 47681073719. The next prime is 47681073751. The reversal of 47681073740 is 4737018674.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 27720695 + ... + 27722414.

It is an arithmetic number, because the mean of its divisors is an integer number (4269119470).

Almost surely, 247681073740 is an apocalyptic number.

It is an amenable number.

47681073740 is an abundant number, since it is smaller than the sum of its proper divisors (54777793540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47681073740 is a wasteful number, since it uses less digits than its factorization.

47681073740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55443161 (or 55443159 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 47681073740 in words is "forty-seven billion, six hundred eighty-one million, seventy-three thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 55443109 110886218 221772436 277215545 554431090 1108862180 2384053687 4768107374 9536214748 11920268435 23840536870 47681073740