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47251021103 = 111314919711257
BaseRepresentation
bin101100000000011000…
…010101110100101111
311111222000010120111122
4230000120111310233
51233232230133403
633412401211155
73261632024006
oct540030256457
9144860116448
1047251021103
1119047a73570
1291a8330abb
1345c03978b0
1424035cbc3d
151368387838
hexb00615d2f

47251021103 has 32 divisors (see below), whose sum is σ = 56172916800. Its totient is φ = 39181685760.

The previous prime is 47251021087. The next prime is 47251021117. The reversal of 47251021103 is 30112015274.

It is a cyclic number.

It is not a de Polignac number, because 47251021103 - 24 = 47251021087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47251021123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4191851 + ... + 4203107.

It is an arithmetic number, because the mean of its divisors is an integer number (1755403650).

Almost surely, 247251021103 is an apocalyptic number.

47251021103 is a deficient number, since it is larger than the sum of its proper divisors (8921895697).

47251021103 is a wasteful number, since it uses less digits than its factorization.

47251021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11627.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 47251021103 its sum of digits (26), we get a square (47251021129 = 2173732).

Adding to 47251021103 its reverse (30112015274), we get a palindrome (77363036377).

The spelling of 47251021103 in words is "forty-seven billion, two hundred fifty-one million, twenty-one thousand, one hundred three".

Divisors: 1 11 13 143 149 197 1639 1937 2167 2561 11257 21307 28171 29353 123827 146341 322883 381589 1609751 1677293 2217629 4197479 18450223 21804809 24393919 28829177 239852899 317120947 330426721 3634693931 4295547373 47251021103