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114538781 = 7231036907
BaseRepresentation
bin1101101001110…
…11100100011101
321222112011200002
412310323210131
5213310220111
615210544045
72560364210
oct664734435
9258464602
10114538781
1159721755
1232438025
131a964236
14112d7777
15a0c763b
hex6d3b91d

114538781 has 16 divisors (see below), whose sum is σ = 137938944. Its totient is φ = 92982384.

The previous prime is 114538771. The next prime is 114538807. The reversal of 114538781 is 187835411.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-114538781 is a prime.

It is a super-2 number, since 2×1145387812 = 26238264705931922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (114538751) 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, 13130 + ... + 20036.

It is an arithmetic number, because the mean of its divisors is an integer number (8621184).

Almost surely, 2114538781 is an apocalyptic number.

It is an amenable number.

114538781 is a deficient number, since it is larger than the sum of its proper divisors (23400163).

114538781 is a wasteful number, since it uses less digits than its factorization.

114538781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040.

The product of its digits is 26880, while the sum is 38.

The square root of 114538781 is about 10702.2792432267. The cubic root of 114538781 is about 485.6434312652.

The spelling of 114538781 in words is "one hundred fourteen million, five hundred thirty-eight thousand, seven hundred eighty-one".

Divisors: 1 7 23 103 161 721 2369 6907 16583 48349 158861 711421 1112027 4979947 16362683 114538781