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20242411440 = 243584343381
BaseRepresentation
bin10010110110100010…
…101010111110110000
31221020201200001020020
4102312202222332300
5312424024131230
613144345043440
71314424441536
oct226642527660
957221601206
1020242411440
11864834a359
123b0b186580
131ba7991264
14da0588156
157d71a1810
hex4b68aafb0

20242411440 has 40 divisors (see below), whose sum is σ = 62751476208. Its totient is φ = 5397976320.

The previous prime is 20242411439. The next prime is 20242411447. The reversal of 20242411440 is 4411424202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20242411440.

It is not an unprimeable number, because it can be changed into a prime (20242411447) 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, 42171451 + ... + 42171930.

Almost surely, 220242411440 is an apocalyptic number.

20242411440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20242411440 is an abundant number, since it is smaller than the sum of its proper divisors (42509064768).

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

20242411440 is a wasteful number, since it uses less digits than its factorization.

20242411440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84343397 (or 84343391 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 20242411440 its reverse (4411424202), we get a palindrome (24653835642).

The spelling of 20242411440 in words is "twenty billion, two hundred forty-two million, four hundred eleven thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 84343381 168686762 253030143 337373524 421716905 506060286 674747048 843433810 1012120572 1265150715 1349494096 1686867620 2024241144 2530301430 3373735240 4048482288 5060602860 6747470480 10121205720 20242411440