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1405950016 = 264321092
BaseRepresentation
bin101001111001101…
…0001100001000000
310121222112122211211
41103303101201000
510334410400031
6351302215504
746561243432
oct12363214100
93558478754
101405950016
11661693069
12332a24594
13195382ab3
14d4a20652
158366cbb1
hex53cd1840

1405950016 has 63 divisors (see below), whose sum is σ = 2882768301. Its totient is φ = 680327424.

The previous prime is 1405949981. The next prime is 1405950041. The reversal of 1405950016 is 6100595041.

The square root of 1405950016 is 37496.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 979940416 + 426009600 = 31304^2 + 20640^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1405950016.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12898570 + ... + 12898678.

It is an arithmetic number, because the mean of its divisors is an integer number (45758227).

Almost surely, 21405950016 is an apocalyptic number.

1405950016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1405950016 is the 37496-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1405950016

1405950016 is an abundant number, since it is smaller than the sum of its proper divisors (1476818285).

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

1405950016 is an frugal number, since it uses more digits than its factorization.

1405950016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The cubic root of 1405950016 is about 1120.2715158052.

The spelling of 1405950016 in words is "one billion, four hundred five million, nine hundred fifty thousand, sixteen".

Divisors: 1 2 4 8 16 32 43 64 86 109 172 218 344 436 688 872 1376 1744 1849 2752 3488 3698 4687 6976 7396 9374 11881 14792 18748 23762 29584 37496 47524 59168 74992 95048 118336 149984 190096 201541 299968 380192 403082 510883 760384 806164 1021766 1612328 2043532 3224656 4087064 6449312 8174128 12898624 16348256 21967969 32696512 43935938 87871876 175743752 351487504 702975008 1405950016