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70741290 = 2352358043
BaseRepresentation
bin1000011011101…
…10110100101010
311221010000210210
410031312310222
5121102210130
611004121550
71516201554
oct415666452
9157100723
1070741290
1136a27a84
121b8362b6
131186b069
1495764d4
1563255b0
hex4376d2a

70741290 has 16 divisors (see below), whose sum is σ = 169779168. Its totient is φ = 18864336.

The previous prime is 70741289. The next prime is 70741291. The reversal of 70741290 is 9214707.

It is an interprime number because it is at equal distance from previous prime (70741289) and next prime (70741291).

It is a super-2 number, since 2×707412902 = 10008660221728200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2358043 = 70741290 / (7 + 0 + 7 + 4 + 1 + 2 + 9 + 0).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70741291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178992 + ... + 1179051.

It is an arithmetic number, because the mean of its divisors is an integer number (10611198).

Almost surely, 270741290 is an apocalyptic number.

70741290 is an abundant number, since it is smaller than the sum of its proper divisors (99037878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70741290 is a wasteful number, since it uses less digits than its factorization.

70741290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358053.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 70741290 is about 8410.7841489364. The cubic root of 70741290 is about 413.5782187136.

Adding to 70741290 its reverse (9214707), we get a palindrome (79955997).

The spelling of 70741290 in words is "seventy million, seven hundred forty-one thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 2358043 4716086 7074129 11790215 14148258 23580430 35370645 70741290