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71472008420 = 22511713051751
BaseRepresentation
bin100001010010000010…
…0000100110011100100
320211111000012012210222
41002210010010303210
52132333313232140
652500033103512
75110100022251
oct1024404046344
9224430165728
1071472008420
11283470a385a
1211a279b7b98
1369803b8b57
143660310428
151cd497b5b5
hex10a4104ce4

71472008420 has 24 divisors (see below), whose sum is σ = 150219440448. Its totient is φ = 28564380000.

The previous prime is 71472008417. The next prime is 71472008449. The reversal of 71472008420 is 2480027417.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1502456 + ... + 1549295.

It is an arithmetic number, because the mean of its divisors is an integer number (6259143352).

Almost surely, 271472008420 is an apocalyptic number.

It is an amenable number.

71472008420 is an abundant number, since it is smaller than the sum of its proper divisors (78747432028).

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

71472008420 is a wasteful number, since it uses less digits than its factorization.

71472008420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052931 (or 3052929 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The spelling of 71472008420 in words is "seventy-one billion, four hundred seventy-two million, eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1171 2342 4684 5855 11710 23420 3051751 6103502 12207004 15258755 30517510 61035020 3573600421 7147200842 14294401684 17868002105 35736004210 71472008420