Search a number
-
+
70040130 = 23510921419
BaseRepresentation
bin1000010110010…
…11101001000010
311212210101222220
410023023221002
5120412241010
610541111510
71510221426
oct413135102
9155711886
1070040130
1136599206
121b558596
1311683b84
149432b86
156237970
hex42cba42

70040130 has 32 divisors (see below), whose sum is σ = 169646400. Its totient is φ = 18505152.

The previous prime is 70040123. The next prime is 70040197. The reversal of 70040130 is 3104007.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7440 + ... + 13979.

It is an arithmetic number, because the mean of its divisors is an integer number (5301450).

Almost surely, 270040130 is an apocalyptic number.

70040130 is an abundant number, since it is smaller than the sum of its proper divisors (99606270).

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

70040130 is a wasteful number, since it uses less digits than its factorization.

70040130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21538.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 70040130 is about 8368.9981479267. The cubic root of 70040130 is about 412.2072707354.

Adding to 70040130 its reverse (3104007), we get a palindrome (73144137).

The spelling of 70040130 in words is "seventy million, forty thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 109 218 327 545 654 1090 1635 3270 21419 42838 64257 107095 128514 214190 321285 642570 2334671 4669342 7004013 11673355 14008026 23346710 35020065 70040130