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23141525520 = 2435523118433
BaseRepresentation
bin10101100011010101…
…111010100000010000
32012201202212022002210
4111203111322200100
5334343212304040
614344151112120
71446316502301
oct254325724020
965652768083
1023141525520
1198a5873703
12459a072640
13224a4b1989
14119760c7a8
15906968480
hex56357a810

23141525520 has 80 divisors (see below), whose sum is σ = 71756335872. Its totient is φ = 6169559040.

The previous prime is 23141525507. The next prime is 23141525567. The reversal of 23141525520 is 2552514132.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×231415255202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1246224 + ... + 1264656.

Almost surely, 223141525520 is an apocalyptic number.

23141525520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23141525520 is an abundant number, since it is smaller than the sum of its proper divisors (48614810352).

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

23141525520 is a wasteful number, since it uses less digits than its factorization.

23141525520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23680 (or 23674 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 23141525520 in words is "twenty-three billion, one hundred forty-one million, five hundred twenty-five thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 5231 10462 15693 18433 20924 26155 31386 36866 41848 52310 55299 62772 73732 78465 83696 92165 104620 110598 125544 147464 156930 184330 209240 221196 251088 276495 294928 313860 368660 418480 442392 552990 627720 737320 884784 1105980 1255440 1474640 2211960 4423920 96423023 192846046 289269069 385692092 482115115 578538138 771384184 964230230 1157076276 1446345345 1542768368 1928460460 2314152552 2892690690 3856920920 4628305104 5785381380 7713841840 11570762760 23141525520