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70260293 = 553112703
BaseRepresentation
bin1000011000000…
…01011001000101
311220012121000002
410030001121011
5120441312133
610545531045
71512126335
oct414013105
9156177002
1070260293
1136729664
121b643a85
131173014c
14948d0c5
15627cce8
hex4301645

70260293 has 4 divisors (see below), whose sum is σ = 70278528. Its totient is φ = 70242060.

The previous prime is 70260283. The next prime is 70260329. The reversal of 70260293 is 39206207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39206207 = 54377211.

It is a cyclic number.

It is not a de Polignac number, because 70260293 - 24 = 70260277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70260263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821 + ... + 11882.

It is an arithmetic number, because the mean of its divisors is an integer number (17569632).

Almost surely, 270260293 is an apocalyptic number.

It is an amenable number.

70260293 is a deficient number, since it is larger than the sum of its proper divisors (18235).

70260293 is a wasteful number, since it uses less digits than its factorization.

70260293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18234.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 70260293 is about 8382.1413135308. The cubic root of 70260293 is about 412.6387275053.

The spelling of 70260293 in words is "seventy million, two hundred sixty thousand, two hundred ninety-three".

Divisors: 1 5531 12703 70260293