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293020020 = 223253743997
BaseRepresentation
bin10001011101110…
…010000101110100
3202102100221220100
4101131302011310
51100003120040
645024234100
710155425526
oct2135620564
9672327810
10293020020
11140447307
128216b930
1348925a37
142acb7a16
151aad0b30
hex11772174

293020020 has 72 divisors (see below), whose sum is σ = 912870504. Its totient is φ = 76025088.

The previous prime is 293020009. The next prime is 293020061. The reversal of 293020020 is 20020392.

It can be written as a sum of positive squares in 4 ways, for example, as 47032164 + 245987856 = 6858^2 + 15684^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 293019975 and 293020002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15339 + ... + 28658.

It is an arithmetic number, because the mean of its divisors is an integer number (12678757).

Almost surely, 2293020020 is an apocalyptic number.

293020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

293020020 is an abundant number, since it is smaller than the sum of its proper divisors (619850484).

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

293020020 is a wasteful number, since it uses less digits than its factorization.

293020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44049 (or 44044 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 293020020 is about 17117.8275490788. The cubic root of 293020020 is about 664.2003465939.

The spelling of 293020020 in words is "two hundred ninety-three million, twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 37 45 60 74 90 111 148 180 185 222 333 370 444 555 666 740 1110 1332 1665 2220 3330 6660 43997 87994 131991 175988 219985 263982 395973 439970 527964 659955 791946 879940 1319910 1583892 1627889 1979865 2639820 3255778 3959730 4883667 6511556 7919460 8139445 9767334 14651001 16278890 19534668 24418335 29302002 32557780 48836670 58604004 73255005 97673340 146510010 293020020