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153420155 = 57171941331
BaseRepresentation
bin10010010010100…
…00000101111011
3101200200112212222
421021100011323
5303233421110
623120154255
73542023040
oct1111200573
9350615788
10153420155
1179668919
124346898b
1325a28875
14165391c7
15d707c55
hex925017b

153420155 has 64 divisors (see below), whose sum is σ = 240952320. Its totient is φ = 91238400.

The previous prime is 153420149. The next prime is 153420161. The reversal of 153420155 is 551024351.

It is an interprime number because it is at equal distance from previous prime (153420149) and next prime (153420161).

It is a de Polignac number, because none of the positive numbers 2k-153420155 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 463340 + ... + 463670.

It is an arithmetic number, because the mean of its divisors is an integer number (3764880).

Almost surely, 2153420155 is an apocalyptic number.

153420155 is a deficient number, since it is larger than the sum of its proper divisors (87532165).

153420155 is a wasteful number, since it uses less digits than its factorization.

153420155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 153420155 is about 12386.2889922688. The cubic root of 153420155 is about 535.3372607811.

The spelling of 153420155 in words is "one hundred fifty-three million, four hundred twenty thousand, one hundred fifty-five".

Divisors: 1 5 7 17 19 35 41 85 95 119 133 205 287 323 331 595 665 697 779 1435 1615 1655 2261 2317 3485 3895 4879 5453 5627 6289 11305 11585 13243 13571 24395 27265 28135 31445 39389 44023 66215 67855 92701 94997 106913 196945 220115 230707 257849 463505 474985 534565 748391 1153535 1289245 1614949 1804943 3741955 4383433 8074745 9024715 21917165 30684031 153420155