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52131303542 = 21913119154829
BaseRepresentation
bin110000100011010001…
…001001000001110110
311222120010020121110002
4300203101021001312
51323231103203132
635540534431302
73523601524463
oct604321110166
9158503217402
1052131303542
1120121841a3a
12a12a802532
134bba49ac96
14274780866a
151551a42262
hexc23449076

52131303542 has 32 divisors (see below), whose sum is σ = 83376691200. Its totient is φ = 24376528800.

The previous prime is 52131303541. The next prime is 52131303547. The reversal of 52131303542 is 24530313125.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52131303541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923384 + ... + 978212.

It is an arithmetic number, because the mean of its divisors is an integer number (2605521600).

Almost surely, 252131303542 is an apocalyptic number.

52131303542 is a deficient number, since it is larger than the sum of its proper divisors (31245387658).

52131303542 is a wasteful number, since it uses less digits than its factorization.

52131303542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55172.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 52131303542 its reverse (24530313125), we get a palindrome (76661616667).

The spelling of 52131303542 in words is "fifty-two billion, one hundred thirty-one million, three hundred three thousand, five hundred forty-two".

Divisors: 1 2 19 38 131 191 262 382 2489 3629 4978 7258 25021 50042 54829 109658 475399 950798 1041751 2083502 7182599 10472339 14365198 20944678 136469381 198974441 272938762 397948882 1371876409 2743752818 26065651771 52131303542