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61123036 = 22136831721
BaseRepresentation
bin1110100100101…
…0100111011100
311021000101001011
43221022213130
5111121414121
610022025004
71341352162
oct351124734
9137011034
1061123036
1131558707
1218578164
13c8811a0
148191232
1555757e1
hex3a4a9dc

61123036 has 24 divisors (see below), whose sum is σ = 115429104. Its totient is φ = 28152960.

The previous prime is 61123033. The next prime is 61123063. The reversal of 61123036 is 63032116.

It is a junction number, because it is equal to n+sod(n) for n = 61122998 and 61123016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61123031) 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, 34656 + ... + 36376.

It is an arithmetic number, because the mean of its divisors is an integer number (4809546).

Almost surely, 261123036 is an apocalyptic number.

It is an amenable number.

61123036 is a deficient number, since it is larger than the sum of its proper divisors (54306068).

61123036 is a wasteful number, since it uses less digits than its factorization.

61123036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 61123036 is about 7818.1222809572. The cubic root of 61123036 is about 393.9142022461.

The spelling of 61123036 in words is "sixty-one million, one hundred twenty-three thousand, thirty-six".

Divisors: 1 2 4 13 26 52 683 1366 1721 2732 3442 6884 8879 17758 22373 35516 44746 89492 1175443 2350886 4701772 15280759 30561518 61123036