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70461331 = 209933569
BaseRepresentation
bin1000011001100…
…10011110010011
311220120210202221
410030302132103
5121014230311
610554121511
71513624423
oct414623623
9156523687
1070461331
1136856706
121b720297
13117a07c5
149502483
1562bc671
hex4332793

70461331 has 4 divisors (see below), whose sum is σ = 70497000. Its totient is φ = 70425664.

The previous prime is 70461301. The next prime is 70461341. The reversal of 70461331 is 13316407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13316407 = 131024339.

It is a 6-Lehmer number, since φ(70461331) divides (70461331-1)6.

It is a cyclic number.

It is not a de Polignac number, because 70461331 - 25 = 70461299 is a prime.

It is a super-2 number, since 2×704613312 = 9929598332583122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70461296 and 70461305.

It is not an unprimeable number, because it can be changed into a prime (70461301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14686 + ... + 18883.

It is an arithmetic number, because the mean of its divisors is an integer number (17624250).

It is a Poulet number, since it divides 270461330-1.

Almost surely, 270461331 is an apocalyptic number.

70461331 is a deficient number, since it is larger than the sum of its proper divisors (35669).

70461331 is a wasteful number, since it uses less digits than its factorization.

70461331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35668.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 70461331 is about 8394.1247905901. The cubic root of 70461331 is about 413.0319181440.

Adding to 70461331 its reverse (13316407), we get a palindrome (83777738).

The spelling of 70461331 in words is "seventy million, four hundred sixty-one thousand, three hundred thirty-one".

Divisors: 1 2099 33569 70461331