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20231012242 = 2719731041869
BaseRepresentation
bin10010110101110111…
…001011111110010010
31221012221012220110201
4102311313023332102
5312413114342432
613143300445414
71314225523660
oct226567137622
957187186421
1020231012242
118641973a31
123b073a986a
131ba54cc87c
14d9cc5bc30
157d619dee7
hex4b5dcbf92

20231012242 has 32 divisors (see below), whose sum is σ = 37007222400. Its totient is φ = 8101565568.

The previous prime is 20231012237. The next prime is 20231012287. The reversal of 20231012242 is 24221013202.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501517 + ... + 540352.

It is an arithmetic number, because the mean of its divisors is an integer number (1156475700).

Almost surely, 220231012242 is an apocalyptic number.

20231012242 is a deficient number, since it is larger than the sum of its proper divisors (16776210158).

20231012242 is a wasteful number, since it uses less digits than its factorization.

20231012242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041970.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20231012242 its reverse (24221013202), we get a palindrome (44452025444).

The spelling of 20231012242 in words is "twenty billion, two hundred thirty-one million, twelve thousand, two hundred forty-two".

Divisors: 1 2 7 14 19 38 73 133 146 266 511 1022 1387 2774 9709 19418 1041869 2083738 7293083 14586166 19795511 39591022 76056437 138568577 152112874 277137154 532395059 1064790118 1445072303 2890144606 10115506121 20231012242