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127490 = 25111961
BaseRepresentation
bin11111001000000010
320110212212
4133020002
513034430
62422122
71040456
oct371002
9213785
10127490
1187870
1261942
134604c
1434666
1527b95
hex1f202

127490 has 32 divisors (see below), whose sum is σ = 267840. Its totient is φ = 43200.

The previous prime is 127487. The next prime is 127493. The reversal of 127490 is 94721.

It is an interprime number because it is at equal distance from previous prime (127487) and next prime (127493).

It is an Ulam number.

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

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2060 + ... + 2120.

It is an arithmetic number, because the mean of its divisors is an integer number (8370).

2127490 is an apocalyptic number.

127490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127490 is an abundant number, since it is smaller than the sum of its proper divisors (140350).

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

127490 is a wasteful number, since it uses less digits than its factorization.

127490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 127490 is about 357.0574183517. The cubic root of 127490 is about 50.3298195969.

The spelling of 127490 in words is "one hundred twenty-seven thousand, four hundred ninety".

Divisors: 1 2 5 10 11 19 22 38 55 61 95 110 122 190 209 305 418 610 671 1045 1159 1342 2090 2318 3355 5795 6710 11590 12749 25498 63745 127490