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101420231 = 1155716553
BaseRepresentation
bin1100000101110…
…00110011000111
321001211200101212
412002320303013
5201430421411
614021442035
72341025543
oct602706307
9231750355
10101420231
1152281580
1229b7031b
1318020093
14d680a23
158d8568b
hex60b8cc7

101420231 has 8 divisors (see below), whose sum is σ = 110845584. Its totient is φ = 92029120.

The previous prime is 101420191. The next prime is 101420239. The reversal of 101420231 is 132024101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101420231 - 226 = 34311367 is a prime.

It is a super-2 number, since 2×1014202312 = 20572126512186722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101420239) 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 7 ways as a sum of consecutive naturals, for example, 2150 + ... + 14403.

It is an arithmetic number, because the mean of its divisors is an integer number (13855698).

Almost surely, 2101420231 is an apocalyptic number.

101420231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101420231 is a deficient number, since it is larger than the sum of its proper divisors (9425353).

101420231 is a wasteful number, since it uses less digits than its factorization.

101420231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17121.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 101420231 is about 10070.7611926805. The cubic root of 101420231 is about 466.3459381818.

Adding to 101420231 its reverse (132024101), we get a palindrome (233444332).

It can be divided in two parts, 10 and 1420231, that added together give a palindrome (1420241).

The spelling of 101420231 in words is "one hundred one million, four hundred twenty thousand, two hundred thirty-one".

Divisors: 1 11 557 6127 16553 182083 9220021 101420231