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70745241 = 3710332707
BaseRepresentation
bin1000011011101…
…11110010011001
311221010020020010
410031313302121
5121102321431
611004152133
71516216230
oct415676231
9157106203
1070745241
1136a2aa46
121b838649
131186cab8
149577b17
156326846
hex4377c99

70745241 has 16 divisors (see below), whose sum is σ = 108852224. Its totient is φ = 40032144.

The previous prime is 70745219. The next prime is 70745273. The reversal of 70745241 is 14254707.

It is not a de Polignac number, because 70745241 - 213 = 70737049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70745199 and 70745208.

It is not an unprimeable number, because it can be changed into a prime (70745201) 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, 14191 + ... + 18516.

It is an arithmetic number, because the mean of its divisors is an integer number (6803264).

Almost surely, 270745241 is an apocalyptic number.

It is an amenable number.

70745241 is a deficient number, since it is larger than the sum of its proper divisors (38106983).

70745241 is a wasteful number, since it uses less digits than its factorization.

70745241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32820.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 70745241 is about 8411.0190226868. The cubic root of 70745241 is about 413.5859182109.

Adding to 70745241 its reverse (14254707), we get a palindrome (84999948).

The spelling of 70745241 in words is "seventy million, seven hundred forty-five thousand, two hundred forty-one".

Divisors: 1 3 7 21 103 309 721 2163 32707 98121 228949 686847 3368821 10106463 23581747 70745241