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1010421231 = 31740134937
BaseRepresentation
bin111100001110011…
…100110111101111
32121102021201100120
4330032130313233
54032131434411
6244132500023
734016303331
oct7416346757
92542251316
101010421231
114793a1476
1224247a613
131314486b1
14982a1451
155da8e106
hex3c39cdef

1010421231 has 16 divisors (see below), whose sum is σ = 1427121504. Its totient is φ = 633703424.

The previous prime is 1010421227. The next prime is 1010421233. The reversal of 1010421231 is 1321240101.

It is not a de Polignac number, because 1010421231 - 22 = 1010421227 is a prime.

It is a super-2 number, since 2×10104212312 = 2041902128111110722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1010421231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010421233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202195 + ... + 207131.

It is an arithmetic number, because the mean of its divisors is an integer number (89195094).

Almost surely, 21010421231 is an apocalyptic number.

1010421231 is a deficient number, since it is larger than the sum of its proper divisors (416700273).

1010421231 is a wasteful number, since it uses less digits than its factorization.

1010421231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1010421231 is about 31787.1236666673. The cubic root of 1010421231 is about 1003.4617461521.

Adding to 1010421231 its reverse (1321240101), we get a palindrome (2331661332).

The spelling of 1010421231 in words is "one billion, ten million, four hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 3 17 51 4013 4937 12039 14811 68221 83929 204663 251787 19812181 59436543 336807077 1010421231