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70127430 = 2356138321
BaseRepresentation
bin1000010111000…
…00111101000110
311212221211202020
410023200331012
5120423034210
610543024010
71511034102
oct413407506
9155854666
1070127430
113664885a
121b59b006
13116b4829
149456902
156253770
hex42e0f46

70127430 has 32 divisors (see below), whose sum is σ = 171069408. Its totient is φ = 18393600.

The previous prime is 70127429. The next prime is 70127441. The reversal of 70127430 is 3472107.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70127430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17331 + ... + 20990.

It is an arithmetic number, because the mean of its divisors is an integer number (5345919).

Almost surely, 270127430 is an apocalyptic number.

70127430 is an abundant number, since it is smaller than the sum of its proper divisors (100941978).

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

70127430 is a wasteful number, since it uses less digits than its factorization.

70127430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38392.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 70127430 is about 8374.2122017537. The cubic root of 70127430 is about 412.3784618981.

Adding to 70127430 its reverse (3472107), we get a palindrome (73599537).

The spelling of 70127430 in words is "seventy million, one hundred twenty-seven thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 61 122 183 305 366 610 915 1830 38321 76642 114963 191605 229926 383210 574815 1149630 2337581 4675162 7012743 11687905 14025486 23375810 35063715 70127430