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47505044 = 2211876261
BaseRepresentation
bin1011010100110…
…1111010010100
310022101111200002
42311031322110
544130130134
64414110432
71114533446
oct265157224
9108344602
1047505044
11248a7274
1213aab418
139ac38c2
146448496
15428587e
hex2d4de94

47505044 has 6 divisors (see below), whose sum is σ = 83133834. Its totient is φ = 23752520.

The previous prime is 47505043. The next prime is 47505083. The reversal of 47505044 is 44050574.

It can be written as a sum of positive squares in only one way, i.e., 27164944 + 20340100 = 5212^2 + 4510^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47504998 and 47505016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47505041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5938127 + ... + 5938134.

It is an arithmetic number, because the mean of its divisors is an integer number (13855639).

Almost surely, 247505044 is an apocalyptic number.

It is an amenable number.

47505044 is a deficient number, since it is larger than the sum of its proper divisors (35628790).

47505044 is a wasteful number, since it uses less digits than its factorization.

47505044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11876265 (or 11876263 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 47505044 is about 6892.3902965517. The cubic root of 47505044 is about 362.1706408345.

The spelling of 47505044 in words is "forty-seven million, five hundred five thousand, forty-four".

Divisors: 1 2 4 11876261 23752522 47505044