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127230072 = 2335301253
BaseRepresentation
bin1111001010101…
…10000001111000
322212101221211220
413211112001320
5230032330242
620342552040
73103303104
oct745260170
9285357756
10127230072
11658aa922
1236738620
1320488a88
1412c7c904
15b282bec
hex7956078

127230072 has 16 divisors (see below), whose sum is σ = 318075240. Its totient is φ = 42410016.

The previous prime is 127230071. The next prime is 127230073. The reversal of 127230072 is 270032721.

It is an interprime number because it is at equal distance from previous prime (127230071) and next prime (127230073).

It is a super-2 number, since 2×1272300722 = 32374982442250368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5301253 = 127230072 / (1 + 2 + 7 + 2 + 3 + 0 + 0 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127230071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2650603 + ... + 2650650.

Almost surely, 2127230072 is an apocalyptic number.

127230072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127230072 is an abundant number, since it is smaller than the sum of its proper divisors (190845168).

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

127230072 is a wasteful number, since it uses less digits than its factorization.

127230072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301262 (or 5301258 counting only the distinct ones).

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

The square root of 127230072 is about 11279.6308450233. The cubic root of 127230072 is about 502.9559199713.

Adding to 127230072 its reverse (270032721), we get a palindrome (397262793).

The spelling of 127230072 in words is "one hundred twenty-seven million, two hundred thirty thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 5301253 10602506 15903759 21205012 31807518 42410024 63615036 127230072