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70122490 = 257012249
BaseRepresentation
bin1000010110111…
…11101111111010
311212221120222021
410023133233322
5120422404430
610542545054
71511013514
oct413375772
9155846867
1070122490
1136645079
121b59818a
13116b24c9
149454bb4
15625207a
hex42dfbfa

70122490 has 8 divisors (see below), whose sum is σ = 126220500. Its totient is φ = 28048992.

The previous prime is 70122463. The next prime is 70122517. The reversal of 70122490 is 9422107.

It is an interprime number because it is at equal distance from previous prime (70122463) and next prime (70122517).

It can be written as a sum of positive squares in 2 ways, for example, as 67584841 + 2537649 = 8221^2 + 1593^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3506115 + ... + 3506134.

Almost surely, 270122490 is an apocalyptic number.

70122490 is a deficient number, since it is larger than the sum of its proper divisors (56098010).

70122490 is a wasteful number, since it uses less digits than its factorization.

70122490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7012256.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 70122490 is about 8373.9172434411. The cubic root of 70122490 is about 412.3687785857.

Adding to 70122490 its reverse (9422107), we get a palindrome (79544597).

The spelling of 70122490 in words is "seventy million, one hundred twenty-two thousand, four hundred ninety".

Divisors: 1 2 5 10 7012249 14024498 35061245 70122490