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1434001021 = 19722973169
BaseRepresentation
bin101010101111001…
…0001111001111101
310200221022210120221
41111132101321331
510414101013041
6354143341341
750351543665
oct12536217175
93627283527
101434001021
11676502212
123402b1851
1319b12491b
14d86431a5
1585d5e2d1
hex55791e7d

1434001021 has 8 divisors (see below), whose sum is σ = 1442362680. Its totient is φ = 1425650688.

The previous prime is 1434000989. The next prime is 1434001039. The reversal of 1434001021 is 1201004341.

It can be written as a sum of positive squares in 4 ways, for example, as 847683225 + 586317796 = 29115^2 + 24214^2 .

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 1434001021 - 25 = 1434000989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1434000986 and 1434001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1434001061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450925 + ... + 454093.

It is an arithmetic number, because the mean of its divisors is an integer number (180295335).

Almost surely, 21434001021 is an apocalyptic number.

It is an amenable number.

1434001021 is a deficient number, since it is larger than the sum of its proper divisors (8361659).

1434001021 is a wasteful number, since it uses less digits than its factorization.

1434001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5663.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1434001021 is about 37868.2059384915. The cubic root of 1434001021 is about 1127.6729255273.

Adding to 1434001021 its reverse (1201004341), we get a palindrome (2635005362).

The spelling of 1434001021 in words is "one billion, four hundred thirty-four million, one thousand, twenty-one".

Divisors: 1 197 2297 3169 452509 624293 7279193 1434001021