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31415054020 = 22571472315241
BaseRepresentation
bin11101010000011110…
…111010111011000100
310000002100222002120021
4131100132322323010
51003314223212040
622233141344524
72161331360530
oct352036727304
9100070862507
1031415054020
1112360a85069
126108a08144
132c685b497c
141740358bc0
15c3ce9424a
hex7507baec4

31415054020 has 48 divisors (see below), whose sum is σ = 75406197888. Its totient is φ = 10769437440.

The previous prime is 31415054017. The next prime is 31415054029. The reversal of 31415054020 is 2045051413.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31415054029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053600 + ... + 2068840.

It is an arithmetic number, because the mean of its divisors is an integer number (1570962456).

Almost surely, 231415054020 is an apocalyptic number.

It is an amenable number.

31415054020 is an abundant number, since it is smaller than the sum of its proper divisors (43991143868).

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

31415054020 is a wasteful number, since it uses less digits than its factorization.

31415054020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29980 (or 29978 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 31415054020 in words is "thirty-one billion, four hundred fifteen million, fifty-four thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 14723 15241 29446 30482 58892 60964 73615 76205 103061 106687 147230 152410 206122 213374 294460 304820 412244 426748 515305 533435 1030610 1066870 2061220 2133740 224393243 448786486 897572972 1121966215 1570752701 2243932430 3141505402 4487864860 6283010804 7853763505 15707527010 31415054020