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65429090 = 25172411597
BaseRepresentation
bin1111100110010…
…1111001100010
311120010010211122
43321211321202
5113222212330
610254212242
71423065236
oct371457142
9146103748
1065429090
1133a29931
1219ab4082
131072b14c
1489925c6
155b265e5
hex3e65e62

65429090 has 32 divisors (see below), whose sum is σ = 125295984. Its totient is φ = 24514560.

The previous prime is 65429087. The next prime is 65429131. The reversal of 65429090 is 9092456.

It can be written as a sum of positive squares in 8 ways, for example, as 35868121 + 29560969 = 5989^2 + 5437^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65429090.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40172 + ... + 41768.

Almost surely, 265429090 is an apocalyptic number.

65429090 is a deficient number, since it is larger than the sum of its proper divisors (59866894).

65429090 is a wasteful number, since it uses less digits than its factorization.

65429090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 65429090 is about 8088.8250073790. The cubic root of 65429090 is about 402.9553813586.

The spelling of 65429090 in words is "sixty-five million, four hundred twenty-nine thousand, ninety".

Divisors: 1 2 5 10 17 34 85 170 241 482 1205 1597 2410 3194 4097 7985 8194 15970 20485 27149 40970 54298 135745 271490 384877 769754 1924385 3848770 6542909 13085818 32714545 65429090