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47253101 = 726115809
BaseRepresentation
bin1011010001000…
…0011001101101
310021220201001212
42310100121231
544044044401
64404444205
71112434100
oct264203155
9107821055
1047253101
1124744a55
12139a9665
139a3601c
1463c0737
154235dbb
hex2d1066d

47253101 has 12 divisors (see below), whose sum is σ = 55872540. Its totient is φ = 39836160.

The previous prime is 47253091. The next prime is 47253113. The reversal of 47253101 is 10135274.

It can be written as a sum of positive squares in 2 ways, for example, as 1623076 + 45630025 = 1274^2 + 6755^2 .

It is a de Polignac number, because none of the positive numbers 2k-47253101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47253121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4916 + ... + 10893.

It is an arithmetic number, because the mean of its divisors is an integer number (4656045).

Almost surely, 247253101 is an apocalyptic number.

It is an amenable number.

47253101 is a deficient number, since it is larger than the sum of its proper divisors (8619439).

47253101 is a wasteful number, since it uses less digits than its factorization.

47253101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15884 (or 15877 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 47253101 is about 6874.0891032922. The cubic root of 47253101 is about 361.5292482905.

Adding to 47253101 its reverse (10135274), we get a palindrome (57388375).

The spelling of 47253101 in words is "forty-seven million, two hundred fifty-three thousand, one hundred one".

Divisors: 1 7 49 61 427 2989 15809 110663 774641 964349 6750443 47253101