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34400440144 = 2472399971289
BaseRepresentation
bin100000000010011011…
…010000111101010000
310021210102111102102201
4200002123100331100
51030423003041034
623445304452544
72325321626260
oct400233207520
9107712442381
1034400440144
1113653173924
12680077a154
133322c50535
141944a397a0
15d650ed014
hex8026d0f50

34400440144 has 80 divisors (see below), whose sum is σ = 76627238400. Its totient is φ = 14655255552.

The previous prime is 34400440099. The next prime is 34400440169. The reversal of 34400440144 is 44104400443.

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

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26687052 + ... + 26688340.

It is an arithmetic number, because the mean of its divisors is an integer number (957840480).

Almost surely, 234400440144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34400440144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38313619200).

34400440144 is an abundant number, since it is smaller than the sum of its proper divisors (42226798256).

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

34400440144 is a wasteful number, since it uses less digits than its factorization.

34400440144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540 (or 2534 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 34400440144 its reverse (44104400443), we get a palindrome (78504840587).

The spelling of 34400440144 in words is "thirty-four billion, four hundred million, four hundred forty thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 239 478 956 997 1289 1673 1912 1994 2578 3346 3824 3988 5156 6692 6979 7976 9023 10312 13384 13958 15952 18046 20624 26768 27916 36092 55832 72184 111664 144368 238283 308071 476566 616142 953132 1232284 1285133 1667981 1906264 2156497 2464568 2570266 3335962 3812528 4312994 4929136 5140532 6671924 8625988 8995931 10281064 13343848 17251976 17991862 20562128 26687696 34503952 35983724 71967448 143934896 307146787 614293574 1228587148 2150027509 2457174296 4300055018 4914348592 8600110036 17200220072 34400440144