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10142422444 = 2271154176079
BaseRepresentation
bin10010111001000100…
…10001010110101100
3222011211202102222201
421130202101112230
5131232430004234
64354231151244
7506224111510
oct113442212654
928154672881
1010142422444
114335151110
121b70815524
13c583652cb
146c3038140
153e5642314
hex25c8915ac

10142422444 has 48 divisors (see below), whose sum is σ = 22136647680. Its totient is φ = 3950213760.

The previous prime is 10142422441. The next prime is 10142422457. The reversal of 10142422444 is 44422424101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (10142422441) 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, 1665397 + ... + 1671475.

It is an arithmetic number, because the mean of its divisors is an integer number (461180160).

Almost surely, 210142422444 is an apocalyptic number.

10142422444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10142422444 is an abundant number, since it is smaller than the sum of its proper divisors (11994225236).

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

10142422444 is a wasteful number, since it uses less digits than its factorization.

10142422444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11518 (or 11516 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 10142422444 its reverse (44422424101), we get a palindrome (54564846545).

The spelling of 10142422444 in words is "ten billion, one hundred forty-two million, four hundred twenty-two thousand, four hundred forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 5417 6079 10834 12158 21668 24316 37919 42553 59587 66869 75838 85106 119174 133738 151676 170212 238348 267476 417109 468083 834218 936166 1668436 1872332 32929943 65859886 131719772 230509601 362229373 461019202 724458746 922038404 1448917492 2535605611 5071211222 10142422444