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40804547551 = 1719712184099
BaseRepresentation
bin100110000000001000…
…111111101111011111
310220022201221210020221
4212000020333233133
51132031431010201
630424555022211
72643113634325
oct460010775737
9126281853227
1040804547551
111633a115579
127aa943a967
133b039682c1
141d9139bd15
1510dc45b4a1
hex98023fbdf

40804547551 has 8 divisors (see below), whose sum is σ = 43424132400. Its totient is φ = 38209331328.

The previous prime is 40804547543. The next prime is 40804547557. The reversal of 40804547551 is 15574540804.

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 40804547551 - 23 = 40804547543 is a prime.

It is a super-2 number, since 2×408045475512 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40804547498 and 40804547507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40804547557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6088701 + ... + 6095398.

It is an arithmetic number, because the mean of its divisors is an integer number (5428016550).

Almost surely, 240804547551 is an apocalyptic number.

40804547551 is a deficient number, since it is larger than the sum of its proper divisors (2619584849).

40804547551 is a wasteful number, since it uses less digits than its factorization.

40804547551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12184313.

The product of its (nonzero) digits is 448000, while the sum is 43.

The spelling of 40804547551 in words is "forty billion, eight hundred four million, five hundred forty-seven thousand, five hundred fifty-one".

Divisors: 1 17 197 3349 12184099 207129683 2400267503 40804547551