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47997529980 = 22353721620509
BaseRepresentation
bin101100101100111000…
…000010111101111100
311120220000211011011120
4230230320002331330
51241244331424410
634014425350540
73316265162511
oct545470027574
9146800734146
1047997529980
11193a0399754
129376338450
1346abc3c31a
1424747d1308
1513adb95570
hexb2ce02f7c

47997529980 has 48 divisors (see below), whose sum is σ = 138025335840. Its totient is φ = 12453412608.

The previous prime is 47997529939. The next prime is 47997530027. The reversal of 47997529980 is 8992579974.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10808035 + ... + 10812474.

It is an arithmetic number, because the mean of its divisors is an integer number (2875527830).

Almost surely, 247997529980 is an apocalyptic number.

It is an amenable number.

47997529980 is an abundant number, since it is smaller than the sum of its proper divisors (90027805860).

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

47997529980 is a wasteful number, since it uses less digits than its factorization.

47997529980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21620558 (or 21620556 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 69.

The spelling of 47997529980 in words is "forty-seven billion, nine hundred ninety-seven million, five hundred twenty-nine thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 21620509 43241018 64861527 86482036 108102545 129723054 216205090 259446108 324307635 432410180 648615270 799958833 1297230540 1599917666 2399876499 3199835332 3999794165 4799752998 7999588330 9599505996 11999382495 15999176660 23998764990 47997529980