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19470208002 = 2374113186311
BaseRepresentation
bin10010001000100000…
…111100110000000010
31212020220122001020220
4102020200330300002
5304333333124002
612540002043510
71256330015550
oct221040746002
955226561226
1019470208002
1182914744a3
123934649596
131ab39c144b
14d29bb6bd0
1578e4ba7bc
hex48883cc02

19470208002 has 64 divisors (see below), whose sum is σ = 45937317888. Its totient is φ = 5385744000.

The previous prime is 19470207989. The next prime is 19470208003. The reversal of 19470208002 is 20080207491.

It is a happy number.

It is a super-2 number, since 2×194702080022 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19470208003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182427 + ... + 268737.

It is an arithmetic number, because the mean of its divisors is an integer number (717770592).

Almost surely, 219470208002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19470208002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22968658944).

19470208002 is an abundant number, since it is smaller than the sum of its proper divisors (26467109886).

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

19470208002 is a wasteful number, since it uses less digits than its factorization.

19470208002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86495.

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 19470208002 in words is "nineteen billion, four hundred seventy million, two hundred eight thousand, two".

Divisors: 1 2 3 6 7 14 21 41 42 82 123 131 246 262 287 393 574 786 861 917 1722 1834 2751 5371 5502 10742 16113 32226 37597 75194 86311 112791 172622 225582 258933 517866 604177 1208354 1812531 3538751 3625062 7077502 10616253 11306741 21232506 22613482 24771257 33920223 49542514 67840446 74313771 79147187 148627542 158294374 237441561 463576381 474883122 927152762 1390729143 2781458286 3245034667 6490069334 9735104001 19470208002