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70475400 = 23335231421
BaseRepresentation
bin1000011001101…
…01111010001000
311220121112002000
410030311322020
5121020203100
610554311000
71514013432
oct414657210
9156545060
1070475400
1136866236
121b728460
13117a7028
149507652
1562c1900
hex4335e88

70475400 has 192 divisors, whose sum is σ = 251174400. Its totient is φ = 18144000.

The previous prime is 70475333. The next prime is 70475401. The reversal of 70475400 is 457407.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (70475401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167190 + ... + 167610.

It is an arithmetic number, because the mean of its divisors is an integer number (1308200).

Almost surely, 270475400 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 70475400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125587200).

70475400 is an abundant number, since it is smaller than the sum of its proper divisors (180699000).

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

70475400 is a wasteful number, since it uses less digits than its factorization.

70475400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 70475400 is about 8394.9627753791. The cubic root of 70475400 is about 413.0594063150.

The spelling of 70475400 in words is "seventy million, four hundred seventy-five thousand, four hundred".