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23123022013020 = 223519131154834753
BaseRepresentation
bin1010100000111101111111…
…00000110110001001011100
310000212112120011100120010110
411100132333200312021130
511012321422113404040
6121102323014210020
74604404020105666
oct520367740661134
9100775504316113
1023123022013020
117405467123a56
122715491353910
13cb965111bc87
1459d235993536
152a1739a21980
hex1507bf83625c

23123022013020 has 96 divisors (see below), whose sum is σ = 68672310094080. Its totient is φ = 5797013114880.

The previous prime is 23123022012991. The next prime is 23123022013061. The reversal of 23123022013020 is 2031022032132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77268037 + ... + 77566716.

It is an arithmetic number, because the mean of its divisors is an integer number (715336563480).

Almost surely, 223123022013020 is an apocalyptic number.

23123022013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23123022013020 is an abundant number, since it is smaller than the sum of its proper divisors (45549288081060).

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

23123022013020 is a wasteful number, since it uses less digits than its factorization.

23123022013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154834915 (or 154834913 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23123022013020 its reverse (2031022032132), we get a palindrome (25154044045152).

The spelling of 23123022013020 in words is "twenty-three trillion, one hundred twenty-three billion, twenty-two million, thirteen thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 131 190 228 262 285 380 393 524 570 655 786 1140 1310 1572 1965 2489 2620 3930 4978 7467 7860 9956 12445 14934 24890 29868 37335 49780 74670 149340 154834753 309669506 464504259 619339012 774173765 929008518 1548347530 1858017036 2322521295 2941860307 3096695060 4645042590 5883720614 8825580921 9290085180 11767441228 14709301535 17651161842 20283352643 29418603070 35302323684 40566705286 44127904605 58837206140 60850057929 81133410572 88255809210 101416763215 121700115858 176511618420 202833526430 243400231716 304250289645 385383700217 405667052860 608500579290 770767400434 1156151100651 1217001158580 1541534800868 1926918501085 2312302201302 3853837002170 4624604402604 5780755503255 7707674004340 11561511006510 23123022013020