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51187094 = 279737693
BaseRepresentation
bin1100001101000…
…0110110010110
310120022120111022
43003100312112
5101100441334
65025041142
71161040340
oct303206626
9116276438
1051187094
1126991692
12151861b2
13a7b282a
146b26290
15476182e
hex30d0d96

51187094 has 16 divisors (see below), whose sum is σ = 88656288. Its totient is φ = 21710592.

The previous prime is 51187091. The next prime is 51187099. The reversal of 51187094 is 49078115.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51187091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17489 + ... + 20204.

It is an arithmetic number, because the mean of its divisors is an integer number (5541018).

Almost surely, 251187094 is an apocalyptic number.

51187094 is a deficient number, since it is larger than the sum of its proper divisors (37469194).

51187094 is a wasteful number, since it uses less digits than its factorization.

51187094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37799.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 51187094 is about 7154.5156369946. The cubic root of 51187094 is about 371.2959038872.

The spelling of 51187094 in words is "fifty-one million, one hundred eighty-seven thousand, ninety-four".

Divisors: 1 2 7 14 97 194 679 1358 37693 75386 263851 527702 3656221 7312442 25593547 51187094